Hyper-Kamiokande: Neutrino Astrophysics and Status

TheHyper-Kamiokande(Hyper-K)projectisamulti-purposenextgenerationneutrinoexperiment. Thephysicsprogramincludesacceleratorneutrino,atmosphericneutrinooscillationmeasurement and proton decay. Neutrino astrophysics is also an important research topic. With its fruitful physics research programs, Hyper-K will play a critical role in the next neutrino physics frontier. It will also provide important information via astrophysical neutrino measurements, i.e., solar neutrino, supernovaburst neutrinosand supernova relic neutrino. The Hyper-K far detector is a double-layered cylindrical shape, with 64 m in height and 71 m in diameter. It will be located deep underground to reduce cosmic-ray backgrounds, 600 m below Mt. Tochibora at Kamioka in Japan. The inner detector will be filled with ultra-pure water and surroundedbytwentythousandphotosensorsof50cmdiameterandmulti-PMTmodulestodetect water Cherenkov radiation from charged particles from the neutrino interactions. The detector will provide the fiducial volume of 188 kt. In August 2025, the excavation of the access tunnels, detector cavern and surrounding caverns are completed. After installing the photosensors and system components, the observation is scheduled to start in 2028. Here, we will discuss the physics potential ofHyper-K neutrinoastrophysics andconstruction status.

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Publication Details

Published
2025-09-24
DOI
https://doi.org/10.22323/1.501.1215
Primary Topic
Neutrino Physics Research
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article
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article

Hyper-Kamiokande: Neutrino Astrophysics and Status

A. P. Kryukov, F. Gramegna, W. G. Melbourne, G. Galiński et al.
Neutrino Physics Research
article

Hyper-Kamiokande: Neutrino Astrophysics and Status

A. P. Kryukov, F. Gramegna, W. G. Melbourne, G. Galiński, S.C. Joshi, H. S. Jo, S. Chakrabarty, Lucile Mellet, J. Marzec, Narine Kazarian, Stefano Russo, Masaru Tada, S. Levorato, M. R. Vagins, K. Ieki, T. Matsubara, Jee-Seung Jang, N. C. Hastings, L. Koerich, L. Ludovici, M. Lawe, Adrien Blanchet, Xingyu Zhao, Mathias El Baz, A. Izmaylov, A. Rychter, C.M. Mollo, P. Ferrario, Y. Itow, Y. Makida, K. Ishidoshiro, V. Herrero, K. Richards, Francisco López, D. Sgalaberna, M. Ikeda, A. Dergacheva, S. Bordoni, J. Pinzino, Evan O’Connor, R. Kurjata, M. Scott, R. Kralik, D. Karlen, Atul Kulkarni, T. Wąchała, Shintaro Miki, C. Bozza, Y. Hayato, Takashi Kobayashi, Michal Malinský, S. B. Boyd, L. Kneale, J. Łagoda, V. Mikola, H. Menjo, G. Burton, K. Graham, A. Buchowicz, G. Barr, G. Zavala, H. Aihara, M. Batkiewicz, T. Nosek, A. Di Nitto, Elena Amato, Francisco Ballester-Merelo, A. S. Inácio, Eric Harvey-Fishenden, R. Matsumoto, K. Okumura, Junjie Xia, M. Feltre, Jik Lee, Th. A. Mueller, Davide Bianco, I. Shimizu, Tran Van Ngoc, H. Sekiya, Maxim Vyalkov, Y. Noguchi, D. N. Svirida, J. Kisiel, M. Ostrowski, B. Jamieson, P. Spradlin, J. Renner, Leonidas Kalousis, Ara Ioannisian, J. F. Toledo, M. D. Thiesse, M. Suchenek, Tadeáš Dohnal, R. Gornea, N. Skrobova, M. Matusiak, D. Bose, J. F. Laporte, R. Rogly, C. Finley, D. Vivolo, T. Mondal, A. Bravar, P. Migliozzi, Grzegorz Zarnecki, F. Monrabal, Till Dieminger, G. Catanesi, R. P. Litchfield, Y. Seiya, J. T. Sobczyk, C. Markou, Y. Oyama, J. C. Nugent, Tom Jones, Ł. Stawarz, Maitrayee Mandal, V. V. Gligorov, H. Tanigawa, K. Hiraide, Y. Asaoka, S. Roth, S. Alonso Monsalve, T. Nakaya, Erin O’Sullivan, M. Della Valle, A. Fiorentini, S. Cuen-Rochin, Eduardo de la Fuente Acosta, G. Vasseur, J.J. Gómez-Cadenas, S. Wronka, T. Ogitsu, U. Köse, V. Aushev, B. S. Yang, Nikolay Ivanov Kolev, Alexander Arguello Quiroga, Giulia Ricciardi, K. Sakashita, M. Grassi, A.J. Finch, K. Hosokawa, Moon Moon Devi, L. Chytka, J. Pasternak, M. 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Ruggeri, Matthew Franks, I. Alekseev, T. Tsukamoto, M. Cieślar, N. F. Calabria, Nicholas Latham, B. Smithers, Marco Sozzi, S. King, K. K. Joo, Dongsu Ryu, Hidekazu Tanaka, A. Simonelli, Krzysztof Ziȩtara, A. Araya, Francisco García Riesgo, Lluis Marti, C. S. Garde, D. Benchekroun, Arman Esmaili, Hiroshi Ito, D. Ferlewicz, S. Cao, Sandhya Choubey, Wojciech Obrębski, Laura Cid-Barrio, J. Migenda, J. de la Cruz Rodríguez, Christopher Densham, B. Spisso, M. Tanaka, C. Pastore, J. Palacio, Y. Takemoto, X.-G. Lu, M. Pilar CASADO LECHUGA, E. Thrane, Masayuki Harada, C. Mariani, M. Gouighri, R. A. Wendell, Ali Ajmi, Taku Ishida, H. Kakuno, D. H. Moon, E. Rondio, C. S. Moon, К. Заремба, Tailin Zhu, J. Dumarchez, O. Gogota, S. Valder, L. Kravchuk, C. Jesús-Valls, Qiaodan Li, A. Langella, L. Magaletti, Y. Kudenko, Botao Li, K. Long, Matej Pavin, M. Ziembicki, K. M. Tsui, Aitaro Kato, A. Ershova, Y. Suzuki, K. Abe, S. Bolognesi, A. Longhin, June Ho Choi, G. Collazuol, S. J. Jenkins, Krzysztof Mazurek, L. Bravo, N. Ospina, F. Di Lodovico, J. W. Seo, M. Yokoyama, E. Sandford, Mauricio Barbi, Y. Nakajima, Yasuhiro Nishimura, Takeshi Nakadaira, Atsushi Takeda, Kazufumi Sato, Olivier Drapier, T. Lux, Misaki Kobayashi, Shigetaka MORIYAMA, Yoshiaki Fujii, Dave Wark, Christophe Bronner, Susan Cartwright, Yusuke Koshio, Kazuhiro Yamamoto, Michel Gonin, L. Bonavera, Yoshi Uchida, Oleg Mineev, A. N. Khotjantsev, Marco Zito, Sandrine Emery, Henry Sobel, Martin Tzanov, Makoto Miura, Barry W. Pointon, Emilio Radicioni, Francisco José Mora Más, Atsumu Suzuki, Takaaki Kajita, Bedřich Roskovec, Benjamin Quilain, Michael Smy, Romain Gaïor, Kotoyo Hoshina, Artem Popov, Tetsuro Sekiguchi, Tatsuya Kikawa, Rhea Gaur, Akira Konaka, Armando Lopes Moreno, M. Shiozawa, Federico Andrés Sánchez, Laurence Cook, J. Holeczek, Gianfranca De Rosa, K. Kwak, Eunhyang Kwon, Myoung Youl Pac, Z. Xie, David Hadley, K. Nakagiri, M. Mezzetto, P. Jonsson, K. Kowalik, J. Kvita, Lukas Berns, N. 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Nakamura, S. Hassani, M. Buizza Avanzini, A. Rubbia, J. González-Nuevo, Volodymyr Takhistov, N. Yershov, A. A. L. Craplet, Y Mandokoro, Hafid Griguer, Ashot Hambardzumyan, J Mahesh, Pere Maimi Vert, D Mendez-Esteban, Mohamed Taha Afif, P Ochoa-Ricoux, Caleb Pate, Jorge Pelegrin Mosquera, Eleonora Ponticelli, M.F Romo-Fuentes, O Vallmajó, B Vinning, J Wuethrich, J.M. Calvo Mozota, E.M Chakir, D Costas-Rodríguez, Magdalena Dobrzynska, Y. Alj Hakim, C.E. Falcon Anaya, F. Cormier
article en

Abstract

TheHyper-Kamiokande(Hyper-K)projectisamulti-purposenextgenerationneutrinoexperiment. Thephysicsprogramincludesacceleratorneutrino,atmosphericneutrinooscillationmeasurement and proton decay. Neutrino astrophysics is also an important research topic. With its fruitful physics research programs, Hyper-K will play a critical role in the next neutrino physics frontier. It will also provide important information via astrophysical neutrino measurements, i.e., solar neutrino, supernovaburst neutrinosand supernova relic neutrino. The Hyper-K far detector is a double-layered cylindrical shape, with 64 m in height and 71 m in diameter. It will be located deep underground to reduce cosmic-ray backgrounds, 600 m below Mt. Tochibora at Kamioka in Japan. The inner detector will be filled with ultra-pure water and surroundedbytwentythousandphotosensorsof50cmdiameterandmulti-PMTmodulestodetect water Cherenkov radiation from charged particles from the neutrino interactions. The detector will provide the fiducial volume of 188 kt. In August 2025, the excavation of the access tunnels, detector cavern and surrounding caverns are completed. After installing the photosensors and system components, the observation is scheduled to start in 2028. Here, we will discuss the physics potential ofHyper-K neutrinoastrophysics andconstruction status.

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