Papers - KOSHIO Yusuke

Observing Supernova Neutrino Light Curves with Super-Kamiokande. V. Distance Estimation with Neutrinos Reviewed

Yudai Suwa, Akira Harada, Masamitsu Mori, Ken’ichiro Nakazato, Ryuichiro Akaho, Masayuki Harada, Yusuke Koshio, Fumi Nakanishi, Kohsuke Sumiyoshi, Roger A. Wendell

The Astrophysical Journal   980 ( 117 )   1 - 5   2025.2

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Language：English   Publishing type：Research paper (scientific journal)  

DOI： 10.3847/1538-4357/adabe2

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First Joint Oscillation Analysis of Super-Kamiokande Atmospheric and T2K Accelerator Neutrino Data. International journal

K Abe, S Abe, C Bronner, Y Hayato, K Hiraide, K Hosokawa, K Ieki, M Ikeda, J Kameda, Y Kanemura, R Kaneshima, Y Kashiwagi, Y Kataoka, S Miki, S Mine, M Miura, S Moriyama, M Nakahata, Y Nakano, S Nakayama, Y Noguchi, K Sato, H Sekiya, H Shiba, K Shimizu, M Shiozawa, Y Sonoda, Y Suzuki, A Takeda, Y Takemoto, H Tanaka, T Yano, S Han, T Kajita, K Okumura, T Tashiro, T Tomiya, X Wang, S Yoshida, P Fernandez, L Labarga, N Ospina, B Zaldivar, B W Pointon, E Kearns, J Mirabito, J L Raaf, L Wan, T Wester, J Bian, N J Griskevich, M B Smy, H W Sobel, V Takhistov, A Yankelevich, J Hill, M C Jang, S H Lee, D H Moon, R G Park, B Bodur, K Scholberg, C W Walter, A Beauchêne, O Drapier, A Giampaolo, Th A Mueller, A D Santos, P Paganini, B Quilain, R Rogly, T Nakamura, J S Jang, L N Machado, J G Learned, K Choi, N Iovine, S Cao, L H V Anthony, D Martin, N W Prouse, M Scott, Y Uchida, V Berardi, N F Calabria, M G Catanesi, E Radicioni, A Langella, G De Rosa, G Collazuol, M Feltre, F Iacob, M Mattiazzi, L Ludovici, M Gonin, L Périssé, G Pronost, C Fujisawa, S Horiuchi, M Kobayashi, Y M Liu, Y Maekawa, Y Nishimura, R Okazaki, R Akutsu, M Friend, T Hasegawa, T Ishida, T Kobayashi, M Jakkapu, T Matsubara, T Nakadaira, K Nakamura, Y Oyama, A Portocarrero Yrey, K Sakashita, T Sekiguchi, T Tsukamoto, N Bhuiyan, G T Burton, F Di Lodovico, J Gao, A Goldsack, T Katori, J Migenda, R M Ramsden, Z Xie, S Zsoldos, A T Suzuki, Y Takagi, Y Takeuchi, H Zhong, J Feng, L Feng, J R Hu, Z Hu, M Kawaue, T Kikawa, M Mori, T Nakaya, R A Wendell, K Yasutome, S J Jenkins, N McCauley, P Mehta, A Tarrant, M J Wilking, Y Fukuda, Y Itow, H Menjo, K Ninomiya, Y Yoshioka, J Lagoda, M Mandal, P Mijakowski, Y S Prabhu, J Zalipska, M Jia, J Jiang, W Shi, C Yanagisawa, M Harada, Y Hino, H Ishino, Y Koshio, F Nakanishi, S Sakai, T Tada, T Tano, T Ishizuka, G Barr, D Barrow, L Cook, S Samani, D Wark, A Holin, F Nova, S Jung, B S Yang, J Y Yang, J Yoo, J E P Fannon, L Kneale, M Malek, J M McElwee, M D Thiesse, L F Thompson, S T Wilson, H Okazawa, S M Lakshmi, S B Kim, E Kwon, J W Seo, I Yu, A K Ichikawa, K D Nakamura, S Tairafune, K Nishijima, A Eguchi, K Nakagiri, Y Nakajima, S Shima, N Taniuchi, E Watanabe, M Yokoyama, P de Perio, S Fujita, C Jesús-Valls, K Martens, K M Tsui, M R Vagins, J Xia, S Izumiyama, M Kuze, R Matsumoto, K Terada, R Asaka, M Ishitsuka, H Ito, Y Ommura, N Shigeta, M Shinoki, K Yamauchi, T Yoshida, R Gaur, V Gousy-Leblanc, M Hartz, A Konaka, X Li, S Chen, B D Xu, Y Wu, A Q Zhang, B Zhang, M Posiadala-Zezula, S B Boyd, R Edwards, D Hadley, M Nicholson, M O'Flaherty, B Richards, A Ali, B Jamieson, S Amanai, Ll Marti, A Minamino, R Shibayama, R Shimamura, S Suzuki, K Abe, S Abe, N Akhlaq, R Akutsu, H Alarakia-Charles, A Ali, Y I Alj Hakim, S Alonso Monsalve, C Andreopoulos, L Anthony, M Antonova, S Aoki, K A Apte, T Arai, T Arihara, S Arimoto, Y Asada, Y Ashida, E T Atkin, N Babu, M Barbi, G J Barker, G Barr, D Barrow, P Bates, M Batkiewicz-Kwasniak, V Berardi, L Berns, S Bhadra, A Blanchet, A Blondel, S Bolognesi, S Bordoni, S B Boyd, A Bravar, C Bronner, A Bubak, M Buizza Avanzini, J A Caballero, N F Calabria, S Cao, D Carabadjac, A J Carter, S L Cartwright, M P Casado, M G Catanesi, A Cervera, J Chakrani, A Chalumeau, D Cherdack, P S Chong, A Chvirova, M Cicerchia, J Coleman, G Collazuol, L Cook, F Cormier, A Cudd, D D'ago, C Dalmazzone, T Daret, P Dasgupta, C Davis, Yu I Davydov, A De Roeck, G De Rosa, T Dealtry, C C Delogu, C Densham, A Dergacheva, R Dharmapal, F Di Lodovico, G Diaz Lopez, S Dolan, D Douqa, T A Doyle, O Drapier, K E Duffy, J Dumarchez, P Dunne, K Dygnarowicz, A Eguchi, J Elias, S Emery-Schrenk, G Erofeev, A Ershova, G Eurin, D Fedorova, S Fedotov, M Feltre, L Feng, D Ferlewicz, A J Finch, G A Fiorentini Aguirre, G Fiorillo, M D Fitton, J M Franco Patiño, M Friend, Y Fujii, Y Fukuda, Y Furui, L Giannessi, C Giganti, V Glagolev, M Gonin, J González Rosa, E A G Goodman, A Gorin, K Gorshanov, M Grassi, M Guigue, D R Hadley, J T Haigh, S Han, D A Harris, M Hartz, T Hasegawa, S Hassani, N C Hastings, Y Hayato, I Heitkamp, D Henaff, Y Hino, M Hogan, J Holeczek, A Holin, T Holvey, N T Hong Van, T Honjo, K Hosokawa, J Hu, A K Ichikawa, K Ieki, M Ikeda, T Ishida, M Ishitsuka, A Izmaylov, M Jakkapu, B Jamieson, S J Jenkins, C Jesús-Valls, M Jia, J J Jiang, J Y Ji, P Jonsson, S Joshi, C K Jung, M Kabirnezhad, A C Kaboth, T Kajita, H Kakuno, J Kameda, S Karpova, S P Kasetti, V S Kasturi, Y Kataoka, T Katori, Y Kawamura, M Kawaue, E Kearns, M Khabibullin, A Khotjantsev, T Kikawa, S King, V Kiseeva, J Kisiel, L Kneale, H Kobayashi, T Kobayashi, L Koch, S Kodama, M Kolupanova, A Konaka, L L Kormos, Y Koshio, T Koto, K Kowalik, Y Kudenko, Y Kudo, S Kuribayashi, R Kurjata, V Kurochka, T Kutter, M Kuze, M La Commara, L Labarga, M Lachat, K Lachner, J Lagoda, S M Lakshmi, M Lamers James, A Langella, J-F Laporte, D Last, N Latham, M Laveder, L Lavitola, M Lawe, Y Lee, D Leon Silverio, S Levorato, S Lewis, C Lin, R P Litchfield, S L Liu, W Li, A Longhin, K R Long, A Lopez Moreno, L Ludovici, X Lu, T Lux, L N Machado, L Magaletti, K Mahn, K K Mahtani, M Malek, M Mandal, S Manly, A D Marino, L Marti-Magro, D G R Martin, M Martini, J F Martin, T Maruyama, T Matsubara, R Matsumoto, V Matveev, C Mauger, K Mavrokoridis, E Mazzucato, N McCauley, K S McFarland, C McGrew, J McKean, A Mefodiev, G D Megias, P Mehta, L Mellet, C Metelko, M Mezzetto, S Miki, E Miller, A Minamino, O Mineev, S Mine, J Mirabito, M Miura, L Molina Bueno, S Moriyama, S Moriyama, P Morrison, Th A Mueller, D Munford, A Muñoz, L Munteanu, K Nagai, Y Nagai, T Nakadaira, K Nakagiri, M Nakahata, Y Nakajima, A Nakamura, K Nakamura, K D Nakamura, Y Nakano, S Nakayama, T Nakaya, K Nakayoshi, C E R Naseby, T V Ngoc, D T Nguyen, V Q Nguyen, K Niewczas, S Nishimori, Y Nishimura, Y Noguchi, T Nosek, F Nova, P Novella, J C Nugent, H M O'Keeffe, L O'Sullivan, T Odagawa, R Okazaki, W Okinaga, K Okumura, T Okusawa, N Onda, N Ospina, L Osu, Y Oyama, V Palladino, V Paolone, M Pari, J Parlone, J Pasternak, D Payne, G C Penn, D Pershey, M Pfaff, L Pickering, G Pintaudi, C Pistillo, B Popov, A J Portocarrero Yrey, K Porwit, M Posiadala-Zezula, Y S Prabhu, H Prasad, F Pupilli, B Quilain, P T Quyen, T Radermacher, E Radicioni, B Radics, M A Ramirez, P N Ratoff, M Reh, C Riccio, E Rondio, S Roth, N Roy, A Rubbia, L Russo, A Rychter, W Saenz, K Sakashita, F Sánchez, Y Sato, T Schefke, C M Schloesser, K Scholberg, M Scott, Y Seiya, T Sekiguchi, H Sekiya, D Sgalaberna, A Shaikhiev, M Shiozawa, Y Shiraishi, A Shvartsman, N Skrobova, K Skwarczynski, D Smyczek, M Smy, J T Sobczyk, H Sobel, F J P Soler, A J Speers, R Spina, Y Stroke, I A Suslov, S Suvorov, A Suzuki, S Y Suzuki, Y Suzuki, M Tada, S Tairafune, A Takeda, Y Takeuchi, K Takifuji, H K Tanaka, H Tanigawa, A Teklu, V V Tereshchenko, N Thamm, L F Thompson, W Toki, C Touramanis, T Tsukamoto, M Tzanov, Y Uchida, M Vagins, D Vargas, M Varghese, G Vasseur, E Villa, W G S Vinning, U Virginet, T Vladisavljevic, T Wachala, D Wakabayashi, H T Wallace, J G Walsh, Y Wang, L Wan, D Wark, M O Wascko, A Weber, R Wendell, M J Wilking, C Wilkinson, J R Wilson, K Wood, C Wret, J Xia, Y-H Xu, K Yamamoto, T Yamamoto, C Yanagisawa, G Yang, T Yano, K Yasutome, N Yershov, U Yevarouskaya, M Yokoyama, Y Yoshimoto, N Yoshimura, M Yu, R Zaki, A Zalewska, J Zalipska, K Zaremba, G Zarnecki, J Zhang, X Y Zhao, H Zhong, T Zhu, M Ziembicki, E D Zimmerman, M Zito, S Zsoldos

Physical review letters   134 ( 1 )   011801 - 011801   2025.1

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Language：English   Publishing type：Research paper (scientific journal)  

The Super-Kamiokande and T2K Collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interaction model for events overlapping in neutrino energy and correlated detector systematic uncertainties between the two datasets, which are found to be compatible. Using 3244.4 days of atmospheric data and a beam exposure of 19.7(16.3)×10^{20} protons on target in (anti)neutrino mode, the analysis finds a 1.9σ exclusion of CP conservation (defined as J_{CP}=0) and a 1.2σ exclusion of the inverted mass ordering.

DOI： 10.1103/PhysRevLett.134.011801

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Modification on Thermal Motion in Geant4 for Neutron Capture Simulation in Gadolinium Loaded Water Reviewed

Y Hino, K Abe, R Asaka, S Han, M Harada, M Ishitsuka, H Ito, S Izumiyama, Y Kanemura, Y Koshio, F Nakanishi, H Sekiya, T Yano

Progress of Theoretical and Experimental Physics   2025 ( 1 )   013C01   2024.12

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Oxford University Press (OUP)  

Abstract

Neutron tagging is a fundamental technique for electron anti-neutrino detection via the inverse beta decay channel. A reported discrepancy in neutron detection efficiency between observational data and simulation predictions prompted an investigation into neutron capture modeling in Geant4. The study revealed that an overestimation of the thermal motion of hydrogen atoms in Geant4 impacts the fraction of captured nuclei. By manually modifying the Geant4 implementation, the simulation results align with calculations based on evaluated nuclear data and show good agreement with observables derived from the SK-Gd data.

DOI： 10.1093/ptep/ptae193

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Other Link： https://academic.oup.com/ptep/article-pdf/2025/1/013C01/61281853/ptae193.pdf

Search for proton decay via 𝑝 →𝑒+⁢𝜂 and 𝑝 →𝜇+⁢𝜂 with a 0.37 Mton-year exposure of Super-Kamiokande Reviewed

N. Taniuchi, K. Abe, S. Abe, Y. Asaoka, C. Bronner, M. Harada, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, M. Nakahata, S. Nakayama, Y. Noguchi, G. Pronost, K. Okamoto, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, S. Watanabe, T. Yano, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, G. D. Megias, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, E. Kearns, J. Mirabito, J. L. Raaf, L. Wan, T. Wester, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, M. C. Jang, J. Y. Kim, S. H. Lee, I. T. Lim, D. H. Moon, R. G. Park, B. S. Yang, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, L. Bernard, A. Coffani, O. Drapier, S. El Hedri, A. Giampaolo, Th. A. Mueller, A. D. Santos, P. Paganini, R. Rogly, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Martin, N. W. Prouse, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, N. F. Calabria, M. G. Catanesi, E. Radicioni, A. Langella, G. De Rosa, G. Collazuol, M. Feltre, F. Iacob, M. Lamoureux, M. Mattiazzi, L. Ludovici, M. Gonin, L. Périssé, B. Quilain, C. Fujisawa, S. Horiuchi, M. Kobayashi, Y. M. Liu, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, A. Portocarrero Yrey, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, T. Boschi, G. T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, R. M. Ramsden, M. Taani, Z. Xie, S. Zsoldos, Y. Kotsar, H. Ozaki, A. T. Suzuki, Y. Takagi, Y. Takeuchi, S. Yamamoto, H. Zhong, J. Feng, L. Feng, S. Han, J. R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, M. J. Wilking, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, Y. Yoshioka, J. Lagoda, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, C. K. Jung, W. Shi, C. Yanagisawa, Y. Hino, H. Ishino, S. Ito, H. Kitagawa, Y. Koshio, W. Ma, F. Nakanishi, S. Sakai, T. Tada, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. Holin, F. Nova, S. Jung, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, O. Stone, P. Stowell, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. M. Lakshmi, S. B. Kim, E. Kwon, M. W. Lee, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, M. Koshiba, A. Eguchi, S. Goto, K. Iwamoto, Y. Mizuno, T. Muro, K. Nakagiri, Y. Nakajima, S. Shima, E. Watanabe, M. Yokoyama, P. de Perio, S. Fujita, C. Jesús-Valls, K. Martens, Ll. Marti, K. M. Tsui, M. R. Vagins, J. Xia, S. Izumiyama, M. Kuze, R. Matsumoto, K. Terada, R. Asaka, M. Inomoto, M. Ishitsuka, H. Ito, T. Kinoshita, Y. Ommura, N. Shigeta, M. Shinoki, T. Suganuma, K. Yamauchi, T. Yoshida, Y. Nakano, J. F. Martin, H. A. Tanaka, T. Towstego, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, Y. Wu, B. D. Xu, A. Q. Zhang, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, A. Minamino, G. Pintaudi, S. Sano, R. Sasaki, R. Shibayama, R. Shimamura, S. Suzuki, K. Wada

Physical Review D   110 ( 11 )   112011-1 - 102011-13   2024.12

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

A search for proton decay into e+/μ+ and a η meson has been performed using data from a 0.373  Mton·year exposure (6050.3 live days) of Super-Kamiokande. Compared to previous searches this work introduces an improved model of the intranuclear η interaction cross section, resulting in a factor of 2 reduction in uncertainties from this source and ∼10% increase in signal efficiency. No significant data excess was found above the expected number of atmospheric neutrino background events resulting in no indication of proton decay into either mode. Lower limits on the proton partial lifetime of 1.4×1034  years for p→e+η and 7.3×1033  years for p→μ+η at the 90% CL were set. These limits are around 1.5 times longer than our previous study and are the most stringent to date.

Published by the American Physical Society 2024

DOI： 10.1103/physrevd.110.112011

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.110.112011/fulltext

Measurement of γ-Rays Generated by Neutron Interaction with 16O at 30 MeV and 250 MeV Reviewed

T Tano, T Horai, Y Ashida, Y Hino, F Iacob, A Maurel, M Mori, G Collazuol, A Konaka, Y Koshio, T Nakaya, T Shima, R Wendell

Progress of Theoretical and Experimental Physics   2024 ( 11 )   113D01   2024.10

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Oxford University Press (OUP)  

Abstract

Deep understanding of $\gamma$-ray production from the fast neutron reaction in water is crucial for various physics studies at large-scale water Cherenkov detectors. We performed test experiments using quasi-mono energetic neutron beams ($E_n = 30$ and 250 MeV) at Osaka University’s Research Center for Nuclear Physics to measure $\gamma$-rays originating from the neutron–oxygen reaction with a high-purity germanium detector. Multiple $\gamma$-ray peaks which are expected to be from excited nuclei after the neutron–oxygen reaction were successfully observed. We measured the neutron beam flux using an organic liquid scintillator for the cross section measurement. With a spectral fitting analysis based on the tailored $\gamma$-ray signal and background templates, we measured cross sections for each observed $\gamma$-ray component. The results will be useful to validate neutron models employed in ongoing and future water Cherenkov experiments.

DOI： 10.1093/ptep/ptae159

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Other Link： https://academic.oup.com/ptep/article-pdf/2024/11/113D01/60833777/ptae159.pdf

Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector Reviewed

H. Kitagawa, T. Tada, K. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, M. Nakahata, Y. Nakano, S. Nakayama, Y. Noguchi, K. Okamoto, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, S. Watanabe, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, G. D. Megias, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, E. Kearns, J. L. Raaf, L. Wan, T. Wester, B. W. Pointon, J. Bian, N. J. Griskevich, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, M. C. Jang, S. H. Lee, D. H. Moon, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, O. Drapier, A. Giampaolo, Th. A. Mueller, P. Paganini, B. Quilain, R. Rogly, A. D. Santos, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Marin, N. W. Prouse, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, N. F. Calabria, M. G. Catanesi, E. Radicioni, A. Langella, G. De Rosa, G. Collazuol, F. Iacob, M. Lamoureux, M. Mattiazzi, L. Ludovici, M. Gonin, L. Perisse, G. Pronost, C. Fujisawa, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, M. Jakkapu, T. Kobayashi, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, G. T. Burton, J. Gao, A. Goldsack, T. Katori, F. Di. Lodovico, J. Migenda, R. M. Ramsden, Z. Xie, S. Zsoldos, Y. Kotsar, H. Ozaki, A. T. Suzuki, Y. Takagi, Y. Takeuchi, H. Zhong, J. Feng, L. Feng, J. R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, M. J. Wilking, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, Y. Yoshioka, J. Lagoda, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, C. K. Jung, W. Shi, C. Yanagisawa, M. Harada, Y. Hino, H. Ishino, Y. Koshio, F. Nakanishi, S. Sakai, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. M. Holin, F. Nova, S. Jung, B. S. Yang, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. M. Lakshmi, S. B. Kim, E. Kwon, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, A. Eguchi, K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi, E. Watanabe, M. Yokoyama, S. Fujita, C. Jesus-Valls, K. Martens, K. M. Tsui, P. de Perio, M. R. Vagins, J. Xia, S. Izumiyama, M. Kuze, R. Matsumoto, K. Terada, M. Ishitsuka, H. Ito, T. Kinoshita, Y. Ommura, N. Shigeta, M. Shinoki, T. Suganuma, K. Yamauchi, T. Yoshida, J. F. Martin, H. A. Tanaka, T. Towstego, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, B. D. Xu, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, Ll. Marti, A. Minamino, G. Pintaudi, S. Sano, S. Suzuki, K. Wada

Physical Review D   110 ( 8 )   2024.10

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Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

We present the results of the charge ratio (R) and polarization (P0μ) measurements using decay electron events collected between September 2008 and June 2022 with the Super-Kamiokande detector. Because of its underground location and long operation, we are able to perform high-precision measurements by accumulating cosmic-ray muons. We measured the muon charge ratio to be R=1.32±0.02(stat+syst) at EμcosθZenith=0.7−0.2+0.3  TeV, where Eμ is the muon energy and θZenith is the zenith angle of incoming cosmic-ray muons. This result is consistent with the Honda flux model while indicating a tension with the πK model of 1.9σ. We also measured the muon polarization at the production location to be P0μ=0.52±0.02  (stat+syst) at the muon momentum of 0.9−0.1+0.6  TeV/c at the surface of the mountain; this also suggests a tension with the Honda flux model of 1.5σ. This is the most precise measurement ever to experimentally determine the cosmic-ray muon polarization near 1  TeV/c. These measurement results are useful to improve atmospheric neutrino simulations.

Published by the American Physical Society 2024

DOI： 10.1103/physrevd.110.082008

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.110.082008/fulltext

Combined Pre-supernova Alert System with KamLAND and Super-Kamiokande Reviewed

S. Abe, M. Eizuka, S. Futagi, A. Gando, Y. Gando, S. Goto, T. Hachiya, K. Hata, K. Ichimura, S. Ieki, H. Ikeda, K. Inoue, K. Ishidoshiro, Y. Kamei, N. Kawada, Y. Kishimoto, M. Koga, M. Kurasawa, T. Mitsui, H. Miyake, D. Morita, T. Nakahata, R. Nakajima, K. Nakamura, R. Nakamura, R. Nakamura, J. Nakane, H. Ozaki, K. Saito, T. Sakai, I. Shimizu, J. Shirai, K. Shiraishi, R. Shoji, A. Suzuki, A. Takeuchi, K. Tamae, H. Watanabe, K. Watanabe, S. Yoshida, S. Umehara, K. Fushimi, K. Kotera, Y. Urano, B. E. Berger, B. K. Fujikawa, J. G. Learned, J. Maricic, Z. Fu, J. Smolsky, L. A. Winslow, Y. Efremenko, H. J. Karwowski, D. M. Markoff, W. Tornow, S. Dell’Oro, T. O’Donnell, J. A. Detwiler, S. Enomoto, M. P. Decowski, K. M. Weerman, C. Grant, H. Song, A. Li, S. N. Axani, M. Garcia, K. Abe, S. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, M. Nakahata, Y. Nakano, S. Nakayama, Y. Noguchi, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, H. Tanaka, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, E. Kearns, J. L. Raaf, L. Wan, T. Wester, J. Bian, N. J. Griskevich, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, M. C. Jang, S. H. Lee, D. H. Moon, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, O. Drapier, A. Giampaolo, Th. A. Mueller, A. D. Santos, P. Paganini, B. Quilain, R. Rogly, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Martin, N. W. Prouse, M. Scott, Y. Uchida, V. Berardi, N. F. Calabria, M. G. Catanesi, E. Radicioni, A. Langella, G. De Rosa, G. Collazuol, M. Feltre, F. Iacob, M. Mattiazzi, L. Ludovici, M. Gonin, L. Périssé, G. Pronost, C. Fujisawa, S. Horiuchi, M. Kobayashi, Y. M. Liu, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. Portocarrero Yrey, N. Bhuiyan, G. T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, R. M. Ramsden, Z. Xie, S. Zsoldos, A. T. Suzuki, Y. Takagi, Y. Takeuchi, H. Zhong, J. Feng, L. Feng, J. R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, M. J. Wilking, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, Y. Yoshioka, J. Lagoda, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, W. Shi, C. Yanagisawa, M. Harada, Y. Hino, H. Ishino, Y. Koshio, F. Nakanishi, S. Sakai, T. Tada, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. Holin, F. Nova, S. Jung, B. S. Yang, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. M. Lakshmi, S. B. Kim, E. Kwon, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, A. Eguchi, K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi, E. Watanabe, M. Yokoyama, P. de Perio, S. Fujita, C. Jesús-Valls, K. Martens, K. M. Tsui, M. R. Vagins, J. Xia, S. Izumiyama, M. Kuze, R. Matsumoto, K. Terada, R. Asaka, M. Ishitsuka, H. Ito, Y. Ommura, N. Shigeta, M. Shinoki, K. Yamauchi, T. Yoshida, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, B. D. Xu, A. Q. Zhang, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, Ll. Marti, A. Minamino, R. Shibayama, S. Suzuki

The Astrophysical Journal   973 ( 2 )   140 - 140   2024.9

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Astronomical Society  

Abstract

Preceding a core-collapse supernova (CCSN), various processes produce an increasing amount of neutrinos of all flavors characterized by mounting energies from the interior of massive stars. Among them, the electron antineutrinos are potentially detectable by terrestrial neutrino experiments such as KamLAND and Super-Kamiokande (SK) via inverse beta decay interactions. Once these pre-supernova (pre-SN) neutrinos are observed, an early warning of the upcoming CCSN can be provided. In light of this, KamLAND and SK, both located in the Kamioka mine in Japan, have been monitoring pre-SN neutrinos since 2015 and 2021, respectively. Recently, we performed a joint study between KamLAND and SK on pre-SN neutrino detection. A pre-SN alert system combining the KamLAND detector and the SK detector was developed and put into operation, which can provide a supernova alert to the astrophysics community. Fully leveraging the complementary properties of these two detectors, the combined alert is expected to resolve a pre-SN neutrino signal from a 15 M _⊙ star within 510 pc of the Earth at a significance level corresponding to a false alarm rate of no more than 1 per century. For a Betelgeuse-like model with optimistic parameters, it can provide early warnings up to 12 hr in advance.

DOI： 10.3847/1538-4357/ad5fee

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Other Link： https://iopscience.iop.org/article/10.3847/1538-4357/ad5fee/pdf

Measurements of higher-order cumulants of multiplicity and net-electric charge distributions in inelastic proton–proton interactions by NA61/SHINE Reviewed

H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, I.-C. Arsene, M. Bajda, Y. Balkova, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, A. Borucka, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, A. Olivier, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, D. Rybka, K. Sakashita, K. Schmidt, A. Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, Ł. Świderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, O. Vitiuk, V. Volkov, A. Wickremasinghe, K. Witek, K. Wójcik, O. Wyszyński, A. Zaitsev, E. Zherebtsova, E. D. Zimmerman, A. Zviagina, R. Zwaska

The European Physical Journal C   84 ( 9 )   2024.9

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

Abstract

This paper presents the energy dependence of multiplicity and net-electric charge fluctuations in p+p interactions at beam momenta 20, 31, 40, 80, and 158 $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$. Results are corrected for the experimental biases and quantified with the use of cumulants and factorial cumulants. Cumulant ratios are an essential tool in the search for the critical point of strongly interacting matter in heavy ion collisions. Measurements performed in p+p interactions provide a vital baseline estimation in these studies. The measured signals are compared with the string hadronic models Epos1.99 and FTFP-BERT.

DOI： 10.1140/epjc/s10052-024-13076-y

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Development of a Data Overflow Protection System for Super-Kamiokande to Maximize Data from Nearby Supernovae Reviewed

M Mori, K Abe, Y Hayato, K Hiraide, K Hosokawa, K Ieki, M Ikeda, J Kameda, Y Kanemura, R Kaneshima, Y Kashiwagi, Y Kataoka, S Miki, S Mine, M Miura, S Moriyama, Y Nakano, M Nakahata, S Nakayama, Y Noguchi, K Okamoto, K Sato, H Sekiya, H Shiba, K Shimizu, M Shiozawa, Y Sonoda, Y Suzuki, A Takeda, Y Takemoto, A Takenaka, H Tanaka, S Watanabe, T Yano, S Han, T Kajita, K Okumura, T Tashiro, T Tomiya, X Wang, S Yoshida, G D Megias, P Fernandez, L Labarga, N Ospina, B Zaldivar, B W Pointon, E Kearns, J L Raaf, L Wan, T Wester, J Bian, N J Griskevich, S Locke, M B Smy, H W Sobel, V Takhistov, A Yankelevich, J Hill, M C Jang, S H Lee, D H Moon, R G Park, B Bodur, K Scholberg, C W Walter, A Beauchêne, O Drapier, A Giampaolo, Th A Mueller, A D Santos, P Paganini, B Quilain, R Rogly, T Ishizuka, T Nakamura, J S Jang, J G Learned, K Choi, N Iovine, S Cao, L H V Anthony, D Martin, M Scott, A A Sztuc, Y Uchida, V Berardi, M G Catanesi, E Radicioni, N F Calabria, A Langella, L N Machado, G De Rosa, G Collazuol, F Iacob, M Lamoureux, M Mattiazzi, L Ludovici, M Gonin, L Perisse, G Pronost, C Fujisawa, Y Maekawa, Y Nishimura, R Okazaki, R Akutsu, M Friend, T Hasegawa, T Ishida, T Kobayashi, M Jakkapu, T Matsubara, T Nakadaira, K Nakamura, Y Oyama, K Sakashita, T Sekiguchi, T Tsukamoto, N Bhuiyan, G T Burton, R Edwards, F Di Lodovico, J Gao, A Goldsack, T Katori, J Migenda, R M Ramsden, Z Xie, S Zsoldos, Y Kotsar, H Ozaki, A T Suzuki, Y Takagi, Y Takeuchi, H Zhong, C Bronner, J Feng, J R Hu, Z Hu, M Kawaune, T Kikawa, F LiCheng, T Nakaya, R A Wendell, K Yasutome, S J Jenkins, N McCauley, P Mehta, A Tarant, Y Fukuda, Y Itow, H Menjo, K Ninomiya, Y Yoshioka, J Lagoda, S M Lakshmi, M Mandal, P Mijakowski, Y S Prabhu, J Zalipska, M Jia, J Jiang, C K Jung, W Shi, M J Wilking, C Yanagisawa, M Harada, Y Hino, H Ishino, H Kitagawa, Y Koshio, F Nakanishi, S Sakai, T Tada, T Tano, G Barr, D Barrow, L Cook, S Samani, D Wark, A Holin, F Nova, S Jung, B S Yang, J Y Yang, J Yoo, J E P Fannon, L Kneale, M Malek, J M McElwee, M D Thiesse, L F Thompson, S Wilson, H Okazawa, S B Kim, E Kwon, J W Seo, I Yu, A K Ichikawa, K D Nakamura, S Tairafune, K Nishijima, A Eguchi, K Nakagiri, Y Nakajima, S Shima, N Taniuchi, E Watanabe, M Yokoyama, P de Perio, S Fujita, K Martens, K M Tsui, M R Vagins, C J Valls, J Xia, M Kuze, S Izumiyama, M Ishitsuka, H Ito, T Kinoshita, R Matsumoto, Y Ommura, N Shigeta, M Shinoki, T Suganuma, K Yamauchi, T Yoshida, J F Martin, H A Tanaka, T Towstego, R Gaur, V Gousy-Leblanc, M Hartz, A Konaka, X Li, N W Prouse, S Chen, B D Xu, B Zhang, M Posiadala-Zezula, S B Boyd, D Hadley, M Nicholson, M O’Flaherty, B Richards, A Ali, B Jamieson, S Amanai, Ll Marti, A Minamino, G Pintaudi, S Sano, S Suzuki, K Wada

Progress of Theoretical and Experimental Physics   2024 ( 10 )   103H01   2024.8

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Oxford University Press (OUP)  

Abstract

Neutrinos from very nearby supernovae, such as Betelgeuse, are expected to generate more than ten million events over 10 s in Super-Kamokande (SK). At such large event rates, the buffers of the SK analog-to-digital conversion board (QBEE) will overflow, causing random loss of data that are critical for understanding the dynamics of the supernova explosion mechanism. In order to solve this problem, two new data-acquisition (DAQ) modules were developed to aid in the observation of very nearby supernovae. The first of these, the SN module, is designed to save only the number of hit photomultiplier tubes during a supernova burst and the second, the Veto module, prescales the high-rate neutrino events to prevent the QBEE from overflowing based on information from the SN module. In the event of a very nearby supernova, these modules allow SK to reconstruct the time evolution of the neutrino event rate from beginning to end using both QBEE and SN module data. This paper presents the development and testing of these modules together with an analysis of supernova-like data generated with a flashing laser diode. We demonstrate that the Veto module successfully prevents DAQ overflows for Betelgeuse-like supernovae as well as the long-term stability of the new modules. During normal running the Veto module is found to issue DAQ vetos a few times per month resulting in a total dead-time less than 1 ms, and does not influence ordinary operations. Additionally, using simulation data we find that supernovae closer than 800 pc will trigger the Veto module, resulting in a prescaling of the observed neutrino data.

DOI： 10.1093/ptep/ptae128

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K^0_S meson production in inelastic p+p interactions at 31, 40 and 80 GeV/c beam momentum measured by NA61/SHINE at the CERN SPS Reviewed

N. Abgrall, H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, A. Korzenev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A. Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, R. Zwaska

The European Physical Journal C   84 ( 8 )   840   2024.8

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

Abstract

The yields of $$K^0_S$$ mesons have been measured in inelastic p+p interactions at incident projectile momenta of 31, 40 and 80 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ ($$\sqrt{s_{NN } }=7.7, 8.8$$ and 12.3 $$\text {Ge}\hspace{-1.00006pt}\text {V}$$, respectively). The data were recorded by the NA61$$/$$SHINE spectrometer at the CERN Super Proton Synchrotron and the $$K^0_S$$ mesons identified via their decays into $$\pi ^{+} \pi ^{-}$$ pairs. Double-differential distributions are presented as function of transverse momentum and rapidity. The mean multiplicities of $$K^0_S$$ mesons were determined to be $$(5.95 \pm 0.19 (stat) \pm 0.30 (sys)) \times 10^{-2}$$ at 31 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$, $$(7.61 \pm 0.13 (stat) \pm 0.43 (sys)) \times 10^{-2}$$ at 40 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ and $$(11.58 \pm 0.12 (stat) \pm 0.55 (sys)) \times 10^{-2}$$ at 80 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$. The results on $$K^{0}_{S}$$ production are compared with the production of charged kaons in corresponding reactions and with model calculations (Epos1.99, SMASH 2.0 and PHSD) as well as with published data from other experiments.

DOI： 10.1140/epjc/s10052-024-13056-2

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Other Link： https://link.springer.com/article/10.1140/epjc/s10052-024-13056-2/fulltext.html

New methods and simulations for cosmogenic induced spallation removal in Super-Kamiokande-IV Reviewed

S. Locke, A. Coffani, K. Abe, C. Bronner, Y. Hayato, M. Ikeda, S. Imaizumi, H. Ito, J. Kameda, Y. Kataoka, M. Miura, S. Moriyama, Y. Nagao, M. Nakahata, Y. Nakajima, S. Nakayama, T. Okada, K. Okamoto, A. Orii, G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, T. Yano, K. Hirade, Y. Kanemura, S. Miki, S. Watabe, S. Han, T. Kajita, K. Okumura, T. Tashiro, J. Xia, X. Wang, G. D. Megias, D. Bravo-Berguño, L. Labarga, Ll. Marti, B. Zaldivar, B. W. Pointon, F. d. M. Blaszczyk, E. Kearns, J. L. Raaf, J. L. Stone, L. Wan, T. Wester, J. Bian, N. J. Griskevich, W. R. Kropp, S. Mine, M. B. Smy, H. W. Sobel, V. Takhistov, P. Weatherly, A. Yankelevich, J. Hill, J. Y. Kim, I. T. Lim, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, L. Bernard, O. Drapier, S. El Hedri, A. Giampaolo, M. Gonin, Th. A. Mueller, P. Paganini, B. Quilain, A. D. Santos, T. Ishizuka, T. Nakamura, J. S. Jang, J. G. Learned, L. H. V. Anthony, A. A. Sztuc, Y. Uchida, D. Martin, M. Scott, V. Berardi, M. G. Catanesi, E. Radicioni, N. F. Calabria, L. N. Machado, G. De Rosa, G. Collazuol, F. Iacob, M. Lamoureux, N. Ospina, M. Mattiazzi, L. Ludovici, Y. Nishimura, Y. Maewaka, S. Cao, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, Y. Nakano, T. Shiozawa, A. T. Suzuki, Y. Takeuchi, S. Yamamoto, Y. Kotsar, H. Ozaki, A. Ali, Y. Ashida, J. Feng, S. Hirota, A. K. Ichikawa, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, P. Fernandez, N. McCauley, P. Mehta, K. M. Tsui, Y. Fukuda, Y. Itow, H. Menjo, T. Niwa, K. Sato, M. Tsukada, P. Mijakowski, J. Lagoda, S. M. Lakshmi, J. Zalipska, C. K. Jung, C. Vilela, M. J. Wilking, C. Yanagisawa, J. Jiang, K. Hagiwara, M. Harada, T. Horai, H. Ishino, S. Ito, Y. Koshio, W. Ma, N. Piplani, S. Sakai, H. Kitagawa, G. Barr, D. Barrow, L. Cook, A. Goldsack, S. Samani, D. Wark, F. Nova, T. Boschi, F. Di Lodovico, M. Taani, S. Zsoldos, J. Gao, J. Migenda, J. Y. Yang, S. J. Jenkins, M. Malek, J. M. McElwee, O. Stone, M. D. Thiesse, L. F. Thompson, H. Okazawa, K. Nakamura, S. B. Kim, I. Yu, J. W. Seo, K. Nishijima, M. Koshiba, K. Iwamoto, N. Ogawa, M. Yokoyama, K. Martens, M. R. Vagins, K. Nakagiri, M. Kuze, S. Izumiyama, T. Yoshida, M. Inomoto, M. Ishitsuka, R. Matsumoto, K. Ohta, M. Shinoki, T. Suganuma, T. Kinoshita, J. F. Martin, H. A. Tanaka, T. Towstego, R. Akutsu, M. Hartz, A. Konaka, P. de Perio, N. W. Prouse, S. Chen, B. D. Xu, Y. Zhang, M. Posiadala-Zezula, B. Richards, B. Jamieson, J. Walker, A. Minamino, K. Okamoto, G. Pintaudi, R. Sasaki

Physical Review D   110 ( 3 )   032003   2024.8

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

Radioactivity induced by cosmic muon spallation is a dominant source of backgrounds for O(10  MeV) neutrino interactions in water Cherenkov detectors. In particular, it is crucial to reduce backgrounds to measure the solar neutrino spectrum and find neutrino interactions from distant supernovae. In this paper we introduce new techniques to locate muon-induced hadronic showers and efficiently reject spallation backgrounds. Applying these techniques to the solar neutrino analysis with an exposure of 2790×22.5  kton·day increases the signal efficiency by 12.6%, approximately corresponding to an additional year of detector running. Furthermore, we present the first spallation simulation at Super-Kamiokande, where we model hadronic interactions using . The agreement between the isotope yields and shower pattern in this simulation and in the data gives confidence in the accuracy of this simulation, and thus opens the door to use it to optimize muon spallation removal in new data with gadolinium-enhanced neutron capture detection.

Published by the American Physical Society 2024

DOI： 10.1103/physrevd.110.032003

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.110.032003/fulltext

Second gadolinium loading to Super-Kamiokande Reviewed

K. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, Y. Nakano, M. Nakahata, S. Nakayama, Y. Noguchi, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, H. Tanaka, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B.W. Pointon, E. Kearns, J.L. Raaf, L. Wan, T. Wester, J. Bian, N.J. Griskevich, M.B. Smy, H.W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, M.C. Jang, S.H. Lee, D.H. Moon, R.G. Park, B. Bodur, K. Scholberg, C.W. Walter, A. Beauchêne, O. Drapier, A. Giampaolo, Th.A. Mueller, A.D. Santos, P. Paganini, B. Quilain, R. Rogly, T. Nakamura, J.S. Jang, L.N. Machado, J.G. Learned, K. Choi, N. Iovine, S. Cao, L.H.V. Anthony, D. Martin, N.W. Prouse, M. Scott, Y. Uchida, V. Berardi, N.F. Calabria, M.G. Catanesi, E. Radicioni, A. Langella, G. De Rosa, G. Collazuol, F. Iacob, M. Mattiazzi, L. Ludovici, M. Gonin, L. Périssé, G. Pronost, C. Fujisawa, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, G.T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, R.M. Ramsden, Z. Xie, S. Zsoldos, A.T. Suzuki, Y. Takagi, Y. Takeuchi, H. Zhong, J. Feng, L. Feng, J.R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R.A. Wendell, K. Yasutome, S.J. Jenkins, N. McCauley, P. Mehta, A. Tarant, M.J. Wilking, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, Y. Yoshioka, J. Lagoda, M. Mandal, P. Mijakowski, Y.S. Prabhu, J. Zalipska, M. Jia, J. Jiang, W. Shi, C. Yanagisawa, M. Harada, Y. Hino, H. Ishino, Y. Koshio, F. Nakanishi, S. Sakai, T. Tada, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. Holin, F. Nova, S. Jung, B.S. Yang, J.Y. Yang, J. Yoo, J.E.P. Fannon, L. Kneale, M. Malek, J.M. McElwee, M.D. Thiesse, L.F. Thompson, S.T. Wilson, H. Okazawa, S.M. Lakshmi, S.B. Kim, E. Kwon, J.W. Seo, I. Yu, A.K. Ichikawa, K. Nakamura, S. Tairafune, K. Nishijima, A. Eguchi, K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi, E. Watanabe, M. Yokoyama, P. de Perio, S. Fujita, C. Jesús-Valls, K. Martens, K.M. Tsui, M.R. Vagins, J. Xia, S. Izumiyama, M. Kuze, R. Matsumoto, K. Terada, M. Ishitsuka, H. Ito, Y. Ommura, N. Shigeta, M. Shinoki, K. Yamauchi, T. Yoshida, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, B.D. Xu, B. Zhang, M. Posiadala-Zezula, S.B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, Ll. Marti, A. Minamino, S. Suzuki, P.R. Scovell, E. Meehan, I. Bandac, C. Peña-Garay, J. Pérez, O. Gileva, E.K. Lee, D.S. Leonard, Y. Sakakieda, A. Sakaguchi, K. Sueki, Y. Takaku, S. Yamasaki

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   1065   169480 - 169480   2024.8

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

DOI： 10.1016/j.nima.2024.169480

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Search for a critical point of strongly-interacting matter in central 40Ar + 45Sc collisions at 13 A–75 A  GeV/c beam momentum Reviewed

H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, P. Christakoglou, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, F. Diakonos, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, A. Kapoyannis, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A.D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, A. D. Panagiotou, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A. Yu Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, M. Vassiliou, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, R. Zwaska

The European Physical Journal C   84 ( 7 )   2024.7

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

Abstract

The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central $$^{40}$$Ar + $$^{45}$$Sc collisions at 13 A, 19 A, 30 A, 40 A, and 75 A  GeV/c. The dependence of the second-order scaled factorial moments of proton multiplicity distributions on the number of subdivisions in transverse momentum space is measured. The intermittency analysis uses statistically independent data sets for every subdivision in transverse and cumulative-transverse momentum variables. The results obtained do not indicate the searched intermittent pattern. An upper limit on the fraction of correlated protons and the intermittency index is obtained based on a comparison with the Power-law Model.

DOI： 10.1140/epjc/s10052-024-13012-0

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Other Link： https://link.springer.com/article/10.1140/epjc/s10052-024-13012-0/fulltext.html

Performance of SK-Gd’s Upgraded Real-time Supernova Monitoring System Reviewed

Y. Kashiwagi, K. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, Y. Nakano, M. Nakahata, S. Nakayama, Y. Noguchi, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, H. Tanaka, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, E. Kearns, J. L. Raaf, L. Wan, T. Wester, J. Bian, N. J. Griskevich, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, M. C. Jang, S. H. Lee, D. H. Moon, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, O. Drapier, A. Giampaolo, Th. A. Mueller, A. D. Santos, P. Paganini, B. Quilain, R. Rogly, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Martin, N. W. Prouse, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, M. G. Catanesi, E. Radicioni, N. F. Calabria, A. Langella, G. De Rosa, G. Collazuol, F. Iacob, M. Mattiazzi, L. Ludovici, M. Gonin, L. Périssé, G. Pronost, C. Fujisawa, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, G. T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, R. M. Ramsden, Z. Xie, S. Zsoldos, A. T. Suzuki, Y. Takagi, Y. Takeuchi, H. Zhong, J. Feng, L. Feng, J. R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, Y. Yoshioka, J. Lagoda, S. M. Lakshmi, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, C. K. Jung, W. Shi, M. J. Wilking, C. Yanagisawa, M. Harada, Y. Hino, H. Ishino, Y. Koshio, F. Nakanishi, S. Sakai, T. Tada, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. Holin, F. Nova, S. Jung, B. S. Yang, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. B. Kim, E. Kwon, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, A. Eguchi, K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi, E. Watanabe, M. Yokoyama, P. de Perio, S. Fujita, C. Jesús-Valls, K. Martens, K. M. Tsui, M. R. Vagins, J. Xia, M. Kuze, S. Izumiyama, R. Matsumoto, M. Ishitsuka, H. Ito, Y. Ommura, N. Shigeta, M. Shinoki, K. Yamauchi, T. Yoshida, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, B. D. Xu, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, Ll. Marti, A. Minamino, S. Suzuki

The Astrophysical Journal   970 ( 1 )   93 - 93   2024.7

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Astronomical Society  

Abstract

Among multimessenger observations of the next Galactic core-collapse supernova, Super-Kamiokande (SK) plays a critical role in detecting the emitted supernova neutrinos, determining the direction to the supernova (SN), and notifying the astronomical community of these observations in advance of the optical signal. In 2022, SK has increased the gadolinium dissolved in its water target (SK-Gd) and has achieved a Gd concentration of 0.033%, resulting in enhanced neutron detection capability, which in turn enables more accurate determination of the supernova direction. Accordingly, SK-Gd’s real-time supernova monitoring system has been upgraded. SK_SN Notice, a warning system that works together with this monitoring system, was released on 2021 December 13, and is available through GCN Notices. When the monitoring system detects an SN-like burst of events, SK_SN Notice will automatically distribute an alarm with the reconstructed direction to the supernova candidate within a few minutes. In this paper, we present a systematic study of SK-Gd’s response to a simulated Galactic SN. Assuming a supernova situated at 10 kpc, neutrino fluxes from six supernova models are used to characterize SK-Gd’s pointing accuracy using the same tools as the online monitoring system. The pointing accuracy is found to vary from 3° to 7° depending on the models. However, if the supernova is closer than 10 kpc, SK_SN Notice can issue an alarm with three-degree accuracy, which will benefit follow-up observations by optical telescopes with large fields of view.

DOI： 10.3847/1538-4357/ad4d8e

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Search for Periodic Time Variations of the Solar ^{8}B Neutrino Flux between 1996 and 2018 in Super-Kamiokande. Reviewed International journal

K Abe, C Bronner, Y Hayato, K Hiraide, K Hosokawa, K Ieki, M Ikeda, J Kameda, Y Kanemura, R Kaneshima, Y Kashiwagi, Y Kataoka, S Miki, S Mine, M Miura, S Moriyama, Y Nakano, M Nakahata, S Nakayama, Y Noguchi, K Sato, H Sekiya, H Shiba, K Shimizu, M Shiozawa, Y Sonoda, Y Suzuki, A Takeda, Y Takemoto, H Tanaka, T Yano, S Han, T Kajita, K Okumura, T Tashiro, T Tomiya, X Wang, S Yoshida, P Fernandez, L Labarga, N Ospina, B Zaldivar, B W Pointon, E Kearns, J L Raaf, L Wan, T Wester, J Bian, N J Griskevich, S Locke, M B Smy, H W Sobel, V Takhistov, A Yankelevich, J Hill, S H Lee, D H Moon, R G Park, M C Jang, B Bodur, K Scholberg, C W Walter, A Beauchêne, O Drapier, A Giampaolo, Th A Mueller, A D Santos, P Paganini, B Quilain, T Nakamura, J S Jang, L N Machado, J G Learned, K Choi, N Iovine, S Cao, L H V Anthony, D Martin, N W Prouse, M Scott, A A Sztuc, Y Uchida, V Berardi, M G Catanesi, E Radicioni, N F Calabria, A Langella, G De Rosa, G Collazuol, F Iacob, M Mattiazzi, L Ludovici, M Gonin, G Pronost, C Fujisawa, Y Maekawa, Y Nishimura, R Okazaki, R Akutsu, M Friend, T Hasegawa, T Ishida, T Kobayashi, M Jakkapu, T Matsubara, T Nakadaira, K Nakamura, Y Oyama, K Sakashita, T Sekiguchi, T Tsukamoto, N Bhuiyan, G T Burton, F Di Lodovico, J Gao, A Goldsack, T Katori, J Migenda, Z Xie, R M Ramsden, S Zsoldos, A T Suzuki, Y Takagi, H Zhong, Y Takeuchi, J Feng, L Feng, J R Hu, Z Hu, T Kikawa, M Mori, M Kawaue, T Nakaya, R A Wendell, K Yasutome, S J Jenkins, N McCauley, P Mehta, A Tarant, Y Fukuda, Y Itow, H Menjo, K Ninomiya, Y Yoshioka, J Lagoda, S M Lakshmi, M Mandal, P Mijakowski, Y S Prabhu, J Zalipska, M Jia, J Jiang, C K Jung, M J Wilking, C Yanagisawa, W Shi, M Harada, Y Hino, H Ishino, Y Koshio, F Nakanishi, S Sakai, T Tada, T Tano, T Ishizuka, G Barr, D Barrow, L Cook, S Samani, D Wark, A Holin, F Nova, B S Yang, J Y Yang, J Yoo, S Jung, J E P Fannon, L Kneale, M Malek, J M McElwee, M D Thiesse, L F Thompson, S T Wilson, H Okazawa, S B Kim, E Kwon, J W Seo, I Yu, A K Ichikawa, K D Nakamura, S Tairafune, K Nishijima, A Eguchi, K Nakagiri, Y Nakajima, S Shima, N Taniuchi, E Watanabe, M Yokoyama, P de Perio, S Fujita, K Martens, K M Tsui, M R Vagins, J Xia, S Izumiyama, M Kuze, R Matsumoto, M Ishitsuka, H Ito, Y Ommura, N Shigeta, M Shinoki, K Yamauchi, T Yoshida, R Gaur, V Gousy-Leblanc, M Hartz, A Konaka, X Li, S Chen, B D Xu, B Zhang, M Posiadala-Zezula, S B Boyd, R Edwards, D Hadley, M Nicholson, M O'Flaherty, B Richards, A Ali, B Jamieson, S Amanai, Ll Marti, A Minamino, S Suzuki

Physical review letters   132 ( 24 )   241803 - 241803   2024.6

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Language：English   Publishing type：Research paper (scientific journal)  

We report a search for time variations of the solar ^{8}B neutrino flux using 5804 live days of Super-Kamiokande data collected between May 31, 1996, and May 30, 2018. Super-Kamiokande measured the precise time of each solar neutrino interaction over 22 calendar years to search for solar neutrino flux modulations with unprecedented precision. Periodic modulations are searched for in a dataset comprising five-day interval solar neutrino flux measurements with a maximum likelihood method. We also applied the Lomb-Scargle method to this dataset to compare it with previous reports. The only significant modulation found is due to the elliptic orbit of the Earth around the Sun. The observed modulation is consistent with astronomical data: we measured an eccentricity of (1.53±0.35)%, and a perihelion shift of (-1.5±13.5) days.

DOI： 10.1103/PhysRevLett.132.241803

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Solar neutrino measurements using the full data period of Super-Kamiokande-IV Reviewed

K. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, S. Imaizumi, K. Iyogi, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, Y. Kato, Y. Kishimoto, S. Miki, S. Mine, M. Miura, T. Mochizuki, S. Moriyama, Y. Nagao, M. Nakahata, Y. Nakano, S. Nakayama, Y. Noguchi, T. Okada, K. Okamoto, A. Orii, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, S. Watanabe, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, R. Wang, X. Wang, S. Yoshida, D. Bravo-Berguño, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, F. d. M. Blaszczyk, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, L. Wan, T. Wester, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, P. Weatherly, A. Yankelevich, K. S. Ganezer, J. Hill, M. C. Jang, J. Y. Kim, S. Lee, I. T. Lim, D. H. Moon, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, L. Bernard, A. Coffani, O. Drapier, S. El Hedri, A. Giampaolo, J. Imber, Th. A. Mueller, P. Paganini, R. Rogly, B. Quilain, A. Santos, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, S. Matsuno, N. Iovine, K. Choi, S. Cao, L. H. V. Anthony, R. P. Litchfield, N. Prouse, D. Marin, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, M. G. Catanesi, R. A. Intonti, E. Radicioni, N. F. Calabria, G. De Rosa, A. Langella, G. Collazuol, F. Iacob, M. Lamoureux, M. Mattiazzi, L. Ludovici, M. Gonin, L. Périssé, G. Pronost, C. Fujisawa, Y. Maekawa, Y. Nishimura, R. Okazaki, M. Friend, T. Hasegawa, T. Ishida, M. Jakkapu, T. Kobayashi, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, T. Boschi, N. Bhuiyan, G. T. Burton, J. Gao, A. Goldsack, T. Katori, F. Di Lodovico, J. Migenda, S. Molina Sedgwick, R. M. Ramsden, M. Taani, Z. Xie, S. Zsoldos, KE. Abe, M. Hasegawa, Y. Isobe, Y. Kotsar, H. Miyabe, H. Ozaki, T. Shiozawa, T. Sugimoto, A. T. Suzuki, Y. Takagi, Y. Takeuchi, S. Yamamoto, H. Zhong, Y. Ashida, J. Feng, L. Feng, T. Hayashino, S. Hirota, J. R. Hu, Z. Hu, M. Jiang, M. Kawaue, T. Kikawa, M. Mori, KE. Nakamura, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Pritchard, A. Tarrant, M. J. Wilking, Y. Fukuda, Y. Itow, H. Menjo, M. Murase, K. Ninomiya, T. Niwa, M. Tsukada, Y. Yoshioka, K. Frankiewicz, J. Lagoda, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, J. Jiang, M. Jia, C. K. Jung, J. L. Palomino, G. Santucci, W. Shi, C. Vilela, C. Yanagisawa, D. Fukuda, K. Hagiwara, M. Harada, Y. Hino, T. Horai, H. Ishino, S. Ito, H. Kitagawa, Y. Koshio, W. Ma, F. Nakanishi, N. Piplani, S. Sakai, M. Sakuda, T. Tada, T. Tano, C. Xu, R. Yamaguchi, T. Ishizuka, Y. Kuno, G. Barr, D. Barrow, L. Cook, S. Samani, C. Simpson, D. Wark, A. M. Holin, F. Nova, S. Jung, B. Yang, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, O. Stone, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. M. Lakshmi, Y. Choi, S. B. Kim, E. Kwon, J. W. Seo, I. Yu, A. K. Ichikawa, K. Nakamura, S. Tairafune, K. Nishijima, A. Eguchi, K. Iwamoto, K. Nakagiri, Y. Nakajima, N. Ogawa, S. Shima, E. Watanabe, M. Yokoyama, R. G. Calland, S. Fujita, C. Jesús-Valls, J. Xia, T. K. Ming, P. de Perio, K. Martens, M. Murdoch, M. R. Vagins, S. Izumiyama, M. Kuze, R. Matsumoto, Y. Okajima, M. Tanaka, T. Yoshida, M. Inomoto, M. Ishitsuka, H. Ito, T. Kinoshita, R. Matsumoto, K. Ohta, Y. Ommura, M. Shinoki, N. Shigeta, T. Suganuma, K. Yamauchi, T. Yoshida, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, B. D. Xu, B. Zhang, S. Berkman, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, J. Walker, S. Amanai, Ll. Marti, A. Minamino, K. Okamoto, G. Pintaudi, S. Sano, R. Sasaki, S. Suzuki, K. Wada

Physical Review D   109 ( 9 )   092001   2024.5

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

An analysis of solar neutrino data from the fourth phase of Super-Kamiokande (SK-IV) from October 2008 to May 2018 is performed and the results are presented. The observation time of the dataset of SK-IV corresponds to 2970 days and the total live time for all four phases is 5805 days. For more precise solar neutrino measurements, several improvements are applied in this analysis: lowering the data acquisition threshold in May 2015, further reduction of the spallation background using neutron clustering events, precise energy reconstruction considering the time variation of the PMT gain. The observed number of solar neutrino events in 3.49–19.49 MeV electron kinetic energy region during SK-IV is 65,443−388+390(stat.)±925(syst.) events. Corresponding B8 solar neutrino flux is (2.314±0.014(stat.)±0.040(syst.))×106  cm−2 s−1, assuming a pure electron-neutrino flavor component without neutrino oscillations. The flux combined with all SK phases up to SK-IV is (2.336±0.011(stat.)±0.043(syst.))×106  cm−2 s−1. Based on the neutrino oscillation analysis from all solar experiments, including the SK 5805 days dataset, the best-fit neutrino oscillation parameters are sin2θ12,solar=0.306±0.013 and Δm21,solar2=(6.10−0.81+0.95)×10−5  eV2, with a deviation of about 1.5σ from the Δm212 parameter obtained by KamLAND. The best-fit neutrino oscillation parameters obtained from all solar experiments and KamLAND are sin2θ12,global=0.307±0.012 and Δm21,global2=(7.50−0.18+0.19)×10−5  eV2.

Published by the American Physical Society 2024

DOI： 10.1103/physrevd.109.092001

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.109.092001/fulltext

Atmospheric neutrino oscillation analysis with neutron tagging and an expanded fiducial volume in Super-Kamiokande I–V Reviewed

T. Wester, K. Abe, C. Bronner, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, Y. Nakano, M. Nakahata, S. Nakayama, Y. Noguchi, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, H. Tanaka, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, E. Kearns, J. L. Raaf, L. Wan, J. Bian, N. J. Griskevich, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, S. H. Lee, D. H. Moon, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, O. Drapier, A. Giampaolo, Th. A. Mueller, A. D. Santos, P. Paganini, B. Quilain, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Martin, N. W. Prouse, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, M. G. Catanesi, E. Radicioni, N. F. Calabria, A. Langella, G. De Rosa, G. Collazuol, F. Iacob, M. Mattiazzi, L. Ludovici, M. Gonin, G. Pronost, C. Fujisawa, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, G. T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, R. Ramsden, Z. Xie, S. Zsoldos, A. T. Suzuki, Y. Takagi, Y. Takeuchi, H. Zhong, J. Feng, L. Feng, J. R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, J. Lagoda, S. M. Lakshmi, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, C. K. Jung, W. Shi, M. J. Wilking, C. Yanagisawa, M. Harada, Y. Hino, H. Ishino, Y. Koshio, F. Nakanishi, S. Sakai, T. Tada, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, A. Holin, F. Nova, S. Samani, D. Wark, S. Jung, B. S. Yang, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. B. Kim, E. Kwon, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, A. Eguchi, K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi, E. Watanabe, M. Yokoyama, P. de Perio, S. Fujita, K. Martens, K. M. Tsui, M. R. Vagins, J. Xia, S. Izumiyama, M. Kuze, R. Matsumoto, M. Ishitsuka, H. Ito, Y. Ommura, N. Shigeta, M. Shinoki, K. Yamauchi, T. Yoshida, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, B. D. Xu, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O’Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, Ll. Marti, A. Minamino, S. Suzuki

Physical Review D   109 ( 7 )   072014   2024.4

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

We present a measurement of neutrino oscillation parameters with the Super-Kamiokande detector using atmospheric neutrinos from the complete pure-water SK I–V (April 1996–July 2020) dataset, including events from an expanded fiducial volume. The dataset corresponds to 6511.3 live days and an exposure of 484.2 kiloton-years. Measurements of the neutrino oscillation parameters Δm322, sin2θ23, sin2θ13, δCP, and the preference for the neutrino mass ordering are presented with atmospheric neutrino data alone, and with constraints on sin2θ13 from reactor neutrino experiments. Our analysis including constraints on sin2θ13 favors the normal mass ordering at the 92.3% level.

Published by the American Physical Society 2024

DOI： 10.1103/physrevd.109.072014

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Measurements of $$\pi ^\pm $$, $$K^\pm $$, p and $$\bar{p}$$ spectra in $$^{40}\hbox {Ar+}^{45}\hbox {Sc}$$ collisions at 13A to 150A $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$ Reviewed

H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A.Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, R. Zwaska

The European Physical Journal C   84 ( 4 )   2024.4

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

Abstract

The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $$\pi ^\pm $$, $$K^\pm $$, p and $$\bar{p}$$ produced in $$^{40}\hbox {Ar+}^{45}\hbox {Sc}$$ collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$. The analysis uses the 10% most central collisions, where the observed forward energy defines centrality. The energy dependence of the $$K^\pm $$/$$\pi ^\pm $$ ratios as well as of inverse slope parameters of the $$K^\pm $$ transverse mass distributions are placed in between those found in inelastic $$p+p$$ and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models.

DOI： 10.1140/epjc/s10052-024-12602-2

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Supernova Burst and Diffuse Supernova Neutrino Background Simulator for Water Cherenkov Detectors Reviewed

Fumi Nakanishi, Shota Izumiyama, Masayuki Harada, Yusuke Koshio

The Astrophysical Journal   965   91   2024.4

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Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

DOI： 10.3847/1538-4357/ad344e

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Development of analysis method for late-phase neutrino emission from the supernova in Super-Kamiokande Reviewed

Fumi Nakanishi, Akira Harada, Masayuki Harada, Yusuke Koshio, Masamitsu Mori, Ken’ichiro Nakazato, Kohsuke Sumiyoshi, Yudai Suwa, Roger A. Wendell

Proceedings of XVIII International Conference on Topics in Astroparticle and Underground Physics — PoS(TAUP2023)   2024.2

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Sissa Medialab  

DOI： 10.22323/1.441.0209

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