211 results on '"Hiroyuki Sekiya"'
Search Results
2. Gas transport enhancement under windy condition in poorly tilled seedbed of clayey rotational paddy field
- Author
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Yoshihiro Matsumoto, Shuichiro Yoshida, Hiroyuki Sekiya, and Kazuhiro Nishida
- Subjects
Soil Science ,Plant Science - Published
- 2021
3. Supernova model discrimination with hyper-kamiokande
- Author
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Y. Nagao, H. Tanaka, A. Minamino, B. Navarro-Garcia, Z. Xie, L. Nascimento Machado, J. Lagoda, M. Shinoki, S. Cuen-Rochin, Arman Esmaili, F. Ballester, S. Parsa, N. McCauley, Jung-Hyun Kim, K. Frankiewicz, L. L. Kormos, Masaki Ishitsuka, M. Malek, V. Valentino, N. Kazarian, T. Wachala, E. Drakopoulou, G. Grella, V. Paolone, L. F. Thompson, A. K. Tomatani-Sánchez, A. Blanchet, R. A. Wendell, John Ellis, J. Y. Kim, N. W. Prouse, O. V. Mineev, M. R. Vagins, T. Boschi, T. Lindner, J. González-Nuevo, Hiroshi Ito, N. Skrobova, M. La Commara, L. Gialanella, F. Orozco-Luna, T. Kumita, A. Garfagnini, S. H. Jeon, A. Dergacheva, Hiroaki Menjo, A. T. Suzuki, K. Okamoto, C. E. R. Naseby, J. F. Martin, T. Iijima, M. Mezzetto, G. Ricciardi, J. R. Wilson, P. Gumplinger, Y. Takemoto, G. Galinski, K. Zaremba, T. Nakadaira, D. Vivolo, A. Carroll, C. Vilela, A. Blondel, A. Rychter, T. A. Doyle, C. Garde, G. De Rosa, A. Oshlianskyi, Hiroyuki Sekiya, R. Matsumoto, G. Pastuszak, P. J. Rajda, F. Monrabal, Yoichi Asaoka, G. Díaz López, K. L. Stankevich, C. D. Shin, Y. Fukuda, Yuto Ashida, Michal Malinský, T. Suganuma, B. Radics, Kohta Murase, Marco Grassi, P. Mehta, F. Cafagna, Ahmed Ali, L. Koerich, Vincenzo Berardi, Etam Noah, F. J. P. Soler, Alan Cosimo Ruggeri, M. Kekic, G. Vasseur, S. Wronka, M. Thiesse, B. Ferrazzi, K. Iwamoto, Yu. Kudenko, Atsushi Takeda, Kendall Mahn, David Hadley, B. Roskovec, M. Bergevin, A. Korzenev, J.J. Gómez-Cadenas, M. Batkiewicz-Kwasniak, M. Tzanov, M. Ikeda, Federico Sanchez, W. Obrębski, H. S. Jo, Y. Takeuchi, Piotr Kalaczyński, S. Chakraborty, J. C. Nugent, S. King, P. Paganini, M. Miura, F. Ameli, D. N. Yeum, C. J. Metelko, Akito Araya, T. Kajita, M. Tanaka, I. T. Lim, L. Mellet, S. Y. Kim, S. Bolognesi, A. Bravar, J. S. Jang, D. Svirida, A. Fiorentini, J. Renner, M. Chabera, L. O'Sullivan, V. Herrero, F. Iacob, K. Nakamura, Ko Okumura, Lukasz Stawarz, N. Ogawa, Laura Bonavera, Y. Maekawa, Takatomi Yano, Ll. Marti, H. J. Rose, S. El Hedri, L. Maret, G. Zarnecki, L. Bernard, S. H. Seo, H. Nakamura, H. Ozaki, A. P. Kryukov, A. Popov, Hisakazu Minakata, M. Buizza Avanzini, P. Sarmah, K. Martens, Sergio Luis Suárez Gómez, Hiroaki Aihara, V. Lezaun, G. A. Cowan, C. Riccio, S. Garode, R. Akutsu, M. Lamers James, T. Nicholls, I. Alekseev, K. Kowalik, J. Kasperek, T. Zakrzewski, S. B. Kim, T. Kutter, Evan O'Connor, B. Jamieson, F. Nova, M. Barbi, Xianguo Lu, Y. Sonoda, M. Friend, Teppei Katori, L. H. V. Anthony, A. Shaikhiev, C. J. Densham, V. Gousy-Leblanc, I. Bandac, J. H. Choi, S. Sano, A. K. Ichikawa, Magda Cicerchia, S. Valder, S. Roth, J. Kameda, M. Zito, A. Vijayvargi, S. Nakai, Y. Kotsar, K. M. Tsui, K. Hoshina, K. K. Joo, C. Pastore, T. Marchi, K. Niewczas, K. Nakayoshi, G. Fiorillo, C. McGrew, P. F. Loverre, S. Playfer, G.D. Barr, L. Labarga, T. Kobayashi, E. S. Pinzon Guerra, André Rubbia, D. Karlen, Th. A. Mueller, L. Koch, F. J. Mora, M. M. Khabibullin, Hidekazu Kakuno, Yoshitaka Itow, H. K. Tanaka, P. Adrich, Jeong-Eun Lee, S. Samani, M. G. Catanesi, M. Yu, M. J. Wilking, Robert Svoboda, P. Mijakowski, N. Kolev, Yu. Onishchuk, A. Kato, J. M. Poutissou, C. Bronner, Yutaka Nakajima, B. Richards, C. Ruggles, M. Needham, P. Jonsson, Y. Hayato, S. Mine, A. Konaka, L. Munteanu, Kunio Inoue, O. Drapier, Kenneth Long, M. McCarthy, T. Kinoshita, G. Tortone, Yuuki Nakano, T. Feusels, N. Izumi, Reetanjali Moharana, T. Dealtry, S. Hassani, G. Pronost, K. Sakashita, J. G. Learned, H. M. O'Keeffe, Shintaro Ito, E. Rondio, Toru Ogitsu, D. A. Patel, Tatiana Ovsiannikova, M. Guigue, Yusuke Koshio, T. Matsubara, S. M. Stellacci, R. J. Wilkes, G. Santucci, S. Y. Suzuki, S. D. Rountree, K. Zietara, A. A. Quiroga, M. Jakkapu, A. Boiano, L. Berns, M. O. Wascko, M. M. Vyalkov, K. Porwit, M. Taani, A. Evangelisti, I. Sashima, Michal Dziewiecki, J. Feng, Y. Seiya, M. Yonenaga, B. Spisso, B. W. Pointon, C. M. Mollo, N. Booth, S. V. Cao, N. Ospina, A. J. Finch, V. Takhistov, E. Radicioni, P. Przewlocki, S. Nakayama, S. Yen, T. Sekiguchi, Yudai Suwa, J. M. Calvo-Mozota, S. Zsoldos, C. Checchia, M. Posiadala-Zezula, E. O'Sullivan, Janusz Marzec, F. Retiere, Jan T. Sobczyk, P. Migliozzi, S. Borjabad, I. Di Palma, John Hill, K. A. Kouzakov, D. L. Wark, L. Cook, D. Sgalaberna, E. W. Miller, M. Lamoureux, M. Y. Pac, S. Russo, S. L. Cartwright, Yasunari Suzuki, D. Bose, B. Zaldivar, D. Martin, Dongsu Ryu, Z. Shan, S. Miki, M. Jiang, J. Kisiel, N. Yershov, M. Matusiak, C. Pea-Garay, K. Sato, Jesús Daniel Santos, Y. Yamaguchi, D. Bravo-Berguo, Chad Finley, T. Tashiro, Lawrence D. Brown, A. Gorin, Hiromasa Tanaka, M. Ziembicki, T. Vladisavljevic, J. Zalipska, J. Insler, C. Yanagisawa, Abinash Medhi, L. Kravchuk, W. Idrissi Ibnsalih, Hirokazu Ishino, J. Bian, K. Magar, S. Cebrian, Philippe Mermod, R. Gornea, Juan Pedro Ochoa-Ricoux, Sergei Fedotov, S. Izumiyama, C. Bozza, R. Esteve, Seiko Hirota, T. Tsukamoto, K. Skwarczynski, E. De la Fuente, T. Kikawa, M. Gonin, J. Xia, Intae Yu, Gareth J. Barker, A. Marinelli, E. Kearns, L. Lavitola, Michal Ostrowski, N. Deshmukh, Y. Kataoka, F. d. M. Blaszczyk, Carsten Rott, C. Mariani, T. Ishida, Roberto Spina, J. W. Seo, Masashi Yokoyama, F. Gramegna, K. Hultqvist, G. Collazuol, P. Spradlin, Gus Sinnis, A. Takenaka, T. Xin, M. Bellato, Yuki Fujii, Mark Scott, J. A. Hernando-Morata, P. Ferrario, A. Buchowicz, S. J. Jenkins, J. Walker, J. Toledo, Pablo Fernandez, Sandhya Choubey, S. Emery, A. Mefodiev, R.P. Kurjata, M. Mongelli, J. Dumarchez, Tsuyoshi Nakaya, M. Antonova, M. Danilov, M. Feely, A. Holin, Ara Ioannisian, B. A. Popov, K Stopa, W. G. S. Vinning, M. L. Sánchez, Masato Shiozawa, L. Ludovici, J. Gao, S. Bhadra, Koji Ishidoshiro, Hiroshi Nunokawa, V. Aushev, M. Hartz, I. Shimizu, C. S. Moon, M. B. Smy, S. Matsuno, I. Anghel, J. Migenda, T. Mondal, F. Di Lodovico, M. Tada, D. J. Payne, M. Kuze, N. C. Hastings, P. Di Meo, Y. Nishimura, M. Inomoto, L. Magaletti, C. Giganti, A. Klekotko, Patrick Dunne, J. Yoo, M. C. Sanchez, A. N. Khotjantsev, Kyujin Kwak, Lars Eklund, M. Lawe, A. Mitra, H. W. Sobel, Jürgen Pozimski, Yasuhiro Makida, A. Bubak, Jaroslaw Pasternak, B. Quilain, R. Leitner, Marco Laveder, J. P. Coleman, N. F. Calabria, H. I. Jang, S. B. Boyd, Moon Moon Devi, M. Fitton, M. Harada, Artur F. Izmaylov, J. McElwee, Shunsaku Horiuchi, P. de Perio, K. Nakagiri, Y. Kano, M. Rescigno, S. Moriyama, Masayuki Nakahata, C. Pidcott, Y. Uchida, V. Palladino, A. Longhin, A. Shaykina, Michelangelo Pari, Akimichi Taketa, Yuichi Oyama, S. Suvorov, R. P. Litchfield, D. H. Moon, Katsuki Hiraide, M. Pavin, M. Koga, R. B. Vogelaar, Enrique Fernandez-Martinez, B. L. Hartfiel, Koji Yamamoto, K. Ohta, K. Abe, Alexander Studenikin, E. Mazzucato, Elisa Bernardini, Abe, K., Adrich, P., Aihara, H., Akutsu, R., Alekseev, I., Ali, A., Ameli, F., Anghel, I., Anthony, L. H. V., Antonova, M., Araya, A., Asaoka, Y., Ashida, Y., Aushev, V., Ballester, F., Bandac, I., Barbi, M., Barker, G. J., Barr, G., Batkiewicz-Kwasniak, M., Bellato, M., Berardi, V., Bergevin, M., Bernard, L., Bernardini, E., Berns, L., Bhadra, S., Bian, J., Blanchet, A., Blaszczyk, F. D. M., Blondel, A., Boiano, A., Bolognesi, S., Bonavera, L., Booth, N., Borjabad, S., Boschi, T., Bose, D., Boyd, S. B., Bozza, C., Bravar, A., Bravo-Berguo, D., Bronner, C., Brown, L., Bubak, A., Buchowicz, A., Buizza Avanzini, M., Cafagna, F. S., Calabria, N. F., Calvo-Mozota, J. M., Cao, S., Cartwright, S. L., Carroll, A., Catanesi, M. G., Cebrian, S., Chabera, M., Chakraborty, S., Checchia, C., Choi, J. H., Choubey, S., Cicerchia, M., Coleman, J., Collazuol, G., Cook, L., Cowan, G., Cuen-Rochin, S., Danilov, M., Diaz Lopez, G., De La Fuente, E., De Perio, P., De Rosa, G., Dealtry, T., Densham, C. J., Dergacheva, A., Deshmukh, N., Devi, M. M., Di Lodovico, F., Di Meo, P., Di Palma, I., Doyle, T. A., Drakopoulou, E., Drapier, O., Dumarchez, J., Dunne, P., Dziewiecki, M., Eklund, L., El Hedri, S., Ellis, J., Emery, S., Esmaili, A., Esteve, R., Evangelisti, A., Feely, M., Fedotov, S., Feng, J., Fernandez, P., Fernandez-Martinez, E., Ferrario, P., Ferrazzi, B., Feusels, T., Finch, A., Finley, C., Fiorentini, A., Fiorillo, G., Fitton, M., Frankiewicz, K., Friend, M., Fujii, Y., Fukuda, Y., Galinski, G., Gao, J., Garde, C., Garfagnini, A., Garode, S., Gialanella, L., Giganti, C., Gomez-Cadenas, J. J., Gonin, M., Gonzalez-Nuevo, J., Gorin, A., Gornea, R., Gousy-Leblanc, V., Gramegna, F., Grassi, M., Grella, G., Guigue, M., Gumplinger, P., Hadley, D. R., Harada, M., Hartfiel, B., Hartz, M., Hassani, S., Hastings, N. C., Hayato, Y., Hernando-Morata, J. A., Herrero, V., Hill, J., Hiraide, K., Hirota, S., Holin, A., Horiuchi, S., Hoshina, K., Hultqvist, K., Iacob, F., Ichikawa, A. K., Idrissi Ibnsalih, W., Iijima, T., Ikeda, M., Inomoto, M., Inoue, K., Insler, J., Ioannisian, A., Ishida, T., Ishidoshiro, K., Ishino, H., Ishitsuka, M., Ito, H., Ito, S., Itow, Y., Iwamoto, K., Izmaylov, A., Izumi, N., Izumiyama, S., Jakkapu, M., Jamieson, B., Jang, H. I., Jang, J. S., Jenkins, S. J., Jeon, S. H., Jiang, M., Jo, H. S., Jonsson, P., Joo, K. K., Kajita, T., Kakuno, H., Kameda, J., Kano, Y., Kalaczynski, P., Karlen, D., Kasperek, J., Kataoka, Y., Kato, A., Katori, T., Kazarian, N., Kearns, E., Khabibullin, M., Khotjantsev, A., Kikawa, T., Kekic, M., Kim, J. H., Kim, J. Y., Kim, S. B., Kim, S. Y., King, S., Kinoshita, T., Kisiel, J., Klekotko, A., Kobayashi, T., Koch, L., Koga, M., Koerich, L., Kolev, N., Konaka, A., Kormos, L. L., Koshio, Y., Korzenev, A., Kotsar, Y., Kouzakov, K. A., Kowalik, K. L., Kravchuk, L., Kryukov, A. P., Kudenko, Y., Kumita, T., Kurjata, R., Kutter, T., Kuze, M., Kwak, K., La Commara, M., Labarga, L., Lagoda, J., Lamers James, M., Lamoureux, M., Laveder, M., Lavitola, L., Lawe, M., Learned, J. G., Lee, J., Leitner, R., Lezaun, V., Lim, I. T., Lindner, T., Litchfield, R. P., Long, K. R., Longhin, A., Loverre, P., Lu, X., Ludovici, L., Maekawa, Y., Magaletti, L., Magar, K., Mahn, K., Makida, Y., Malek, M., Malinsky, M., Marchi, T., Maret, L., Mariani, C., Marinelli, A., Martens, K., Marti, L., Martin, J. F., Martin, D., Marzec, J., Matsubara, T., Matsumoto, R., Matsuno, S., Matusiak, M., Mazzucato, E., Mccarthy, M., Mccauley, N., Mcelwee, J., Mcgrew, C., Mefodiev, A., Medhi, A., Mehta, P., Mellet, L., Menjo, H., Mermod, P., Metelko, C., Mezzetto, M., Migenda, J., Migliozzi, P., Mijakowski, P., Miki, S., Miller, E. W., Minakata, H., Minamino, A., Mine, S., Mineev, O., Mitra, A., Miura, M., Moharana, R., Mollo, C. M., Mondal, T., Mongelli, M., Monrabal, F., Moon, D. H., Moon, C. S., Mora, F. J., Moriyama, S., Mueller, T. A., Munteanu, L., Murase, K., Nagao, Y., Nakadaira, T., Nakagiri, K., Nakahata, M., Nakai, S., Nakajima, Y., Nakamura, K., Nakamura, K. I., Nakamura, H., Nakano, Y., Nakaya, T., Nakayama, S., Nakayoshi, K., Nascimento Machado, L., Naseby, C. E. R., Navarro-Garcia, B., Needham, M., Nicholls, T., Niewczas, K., Nishimura, Y., Noah, E., Nova, F., Nugent, J. C., Nunokawa, H., Obrebski, W., Ochoa-Ricoux, J. P., O'Connor, E., Ogawa, N., Ogitsu, T., Ohta, K., Okamoto, K., O'Keeffe, H. M., Okumura, K., Onishchuk, Y., Orozco-Luna, F., Oshlianskyi, A., Ospina, N., Ostrowski, M., O'Sullivan, E., O'Sullivan, L., Ovsiannikova, T., Oyama, Y., Ozaki, H., Pac, M. Y., Paganini, P., Palladino, V., Paolone, V., Pari, M., Parsa, S., Pasternak, J., Pastore, C., Pastuszak, G., Patel, D. A., Pavin, M., Payne, D., Pea-Garay, C., Pidcott, C., Pinzon Guerra, E., Playfer, S., Pointon, B. W., Popov, A., Popov, B., Porwit, K., Posiadala-Zezula, M., Poutissou, J. -M., Pozimski, J., Pronost, G., Prouse, N. W., Przewlocki, P., Quilain, B., Quiroga, A. A., Radicioni, E., Radics, B., Rajda, P. J., Renner, J., Rescigno, M., Retiere, F., Ricciardi, G., Riccio, C., Richards, B., Rondio, E., Rose, H. J., Roskovec, B., Roth, S., Rott, C., Rountree, S. D., Rubbia, A., Ruggeri, A. C., Ruggles, C., Russo, S., Rychter, A., Ryu, D., Sakashita, K., Samani, S., Sanchez, F., Sanchez, M. L., Sanchez, M. C., Sano, S., Santos, J. D., Santucci, G., Sarmah, P., Sashima, I., Sato, K., Scott, M., Seiya, Y., Sekiguchi, T., Sekiya, H., Seo, J. W., Seo, S. H., Sgalaberna, D., Shaikhiev, A., Shan, Z., Shaykina, A., Shimizu, I., Shin, C. D., Shinoki, M., Shiozawa, M., Sinnis, G., Skrobova, N., Skwarczynski, K., Smy, M. B., Sobczyk, J., Sobel, H. W., Soler, F. J. P., Sonoda, Y., Spina, R., Spisso, B., Spradlin, P., Stankevich, K. L., Stawarz, L., Stellacci, S. M., Stopa, K., Studenikin, A. I., Suarez Gomez, S. L., Suganuma, T., Suvorov, S., Suwa, Y., Suzuki, A. T., Suzuki, S. Y., Suzuki, Y., Svirida, D., Svoboda, R., Taani, M., Tada, M., Takeda, A., Takemoto, Y., Takenaka, A., Taketa, A., Takeuchi, Y., Takhistov, V., Tanaka, H., Tanaka, H. A., Tanaka, H. I., Tanaka, M., Tashiro, T., Thiesse, M., Thompson, L. F., Toledo, J., Tomatani-Sanchez, A. K., Tortone, G., Tsui, K. M., Tsukamoto, T., Tzanov, M., Uchida, Y., Vagins, M. R., Valder, S., Valentino, V., Vasseur, G., Vijayvargi, A., Vilela, C., Vinning, W. G. S., Vivolo, D., Vladisavljevic, T., Vogelaar, R. B., Vyalkov, M. M., Wachala, T., Walker, J., Wark, D., Wascko, M. O., Wendell, R. A., Wilkes, R. J., Wilking, M. J., Wilson, J. R., Wronka, S., Xia, J., Xie, Z., Xin, T., Yamaguchi, Y., Yamamoto, K., Yanagisawa, C., Yano, T., Yen, S., Yershov, N., Yeum, D. N., Yokoyama, M., Yonenaga, M., Yoo, J., Yu, I., Yu, M., Zakrzewski, T., Zaldivar, B., Zalipska, J., Zaremba, K., Zarnecki, G., Ziembicki, M., Zietara, K., Zito, M., Zsoldos, S., Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Hyper-Kamiokande, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Physics - Instrumentation and Detectors ,09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación ,KAMIOKANDE ,Astrophysics ,01 natural sciences ,neutrino: flux ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,neutrino ,accretion ,black hole ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Core-collapse supernovae ,neutron star ,Monte Carlo ,physics.ins-det ,010303 astronomy & astrophysics ,astro-ph.HE ,High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,Instrumentation and Detectors (physics.ins-det) ,16. Peace & justice ,Supernova ,neutrino: detector ,07.- Asegurar el acceso a energías asequibles, fiables, sostenibles y modernas para todos ,supernova ,neutrino astronomy ,neutrino physics ,Neutrino detector ,Neutrino ,Astrophysics - Instrumentation and Methods for Astrophysics ,Astrophysics - High Energy Astrophysical Phenomena ,supernova: collapse ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Observable universe ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Hyper-Kamiokande ,0103 physical sciences ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,High energy physics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,High Energy Astrophysical Phenomena ,Astrophysics::Galaxy Astrophysics ,hep-ex ,010308 nuclear & particles physics ,supernova: model ,Astronomy and Astrophysics ,Galaxy ,Black hole ,Neutron star ,Space and Planetary Science ,neutrino: burst ,galaxy ,Neutrino astronomy ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,astro-ph.IM - Abstract
Autorzy: Abe K., Adrich P., Aihara H., Akutsu, R., Alekseev I., Ali A. , Ameli F., Anghel I., Anthony L. H. V., Antonova M. , Araya A., Asaoka Y., Ashida Y., Aushev V., Ballester F., Bandac I., Barbi M., Barker G. J., Barr G., Batkiewicz-Kwasniak M., Bellato M., Berardi V., Bergevin M., Bernard L., Bernardini E., Berns L., Bhadra S., Bian J., Blanchet A., Blaszczyk F. d. M., Blonde A., Boiano A., Bolognesi S., Bonavera L., Booth N., Borjabad S., Boschi, T., Bose D., Boyd S . B., Bozza C., Bravar A., Bravo-Berguño D., Bronner C., Brown L., Bubak Arkadiusz, Buchowicz A., Buizza Avanzini M., Cafagna F. S., Calabria N. F., Calvo-Mozota J. M., Cao S., Cartwright S.L., Carroll A., Catanesi M. G., Cebriàn, S., Chabera M., Chakraborty, S., Checchia C., Choi J.H., Choubey S., Cicerchia M., Coleman J., Collazuol G., Cook L., Cowan G., Cuen-Rochin, S., Danilov M., Díaz López G., De la Fuente E., de Perio P., De Rosa G., Dealtry T., Densham C. J., Dergacheva A., Deshmukh N., Devi M. M., Di Lodovico F., Di Meo, P., Di Palma I., Doyle T. A., Drakopoulou E., Drapier O., Dumarchez J., Dunne P., Dziewiecki M., Eklund L., El Hedri S., Ellis J., Emery S., Esmaili A., Esteve R., Evangelisti A., Feely M., Fedotov S., Feng J., Fernandez P., Fernández-Martinez E., Ferrario P., Ferrazzi,B., Feusels T., Finch A., Finley C., Fiorentini A., Fiorillo G., Fitton M., Frankiewicz K., Friend M., Fujii Y., Fukuda Y., Galinski G., Gao J., Garde C., Garfagnini A., Garode S., Gialanella L., Giganti C., Gomez-Cadenas J.J., Gonin M., González-Nuevo J., Gorin A., Gornea R., Gousy-Leblanc V. Gramegna F. Grassi M. Grella G. Guigue M. Gumplinger P. Hadley D.R. Harada M., Hartfiel B., Hartz M., Hassani S., Hastings N.C., Hayato Y., Hernando-Morata J.A., Herrero V., Hill J., Hiraide K., Hirota S., Holin A., Horiuchi S., Hoshina K., Hultqvist K., Iacob F., Ichikawa A.K., Idrissi Ibnsalih W., Iijima T., Ikeda M., Inomoto M., Inoue K., Insler J., Ioannisian A., Ishida T., Ishidoshiro K., Ishino H., Ishitsuka M., Ito H., Ito S., Itow Y., Iwamoto K., Izmaylov A., Izumi N., Izumiyama S., Jakkapu M., Jamieson B., Jang H.I., Jang J.S., Jenkins S.J., Jeon S.H., Jiang M., Jo H.S., Jonsson P., Joo K.K., Kajita T., Kakuno H., Kameda J., Kano Y., Kalaczynski P., Karlen D., Kasperek J., Kataoka Y., Kato A., Katori T., Kazarian N., Kearns E., Khabibullin M., Khotjantsev A., Kikawa T., Kekic M., Kim J.H., Kim J.Y., Kim S.B., Kim S.Y., King S., Kinoshita T., Kisiel Jan, Klekotko A., Kobayashi T., Koch L., Koga M., Koerich L., Kolev N., Konaka A., Kormos L.L., Koshio Y., Korzenev A., Kotsar Y., Kouzakov K.A., Kowalik K.L., Kravchuk L., Kryukov A.P., Kudenko Y., Kumita T., Kurjata R., Kutter T., Kuze M., Kwak K., La Commara M., Labarga L., Lagoda J., Lamers James J., Lamoureux M., Laveder M., Lavitola L., Lawe M., Learned J.G., Lee J., Leitner R., Lezaun V., Lim I.T., Lindner T., Litchfield R.P., Long K.R., Longhin A., Loverre P., Lu X., Ludovici L., Maekawa Y., Magaletti L., Magar K., Mahn K., Makida Y., Malek M., Malinský M., Marchi T., Maret L., Mariani C., Marinelli A., Martens K., Marti L., Martin J.F. Martin D., Marzec J., Matsubara T., Matsumoto R., Matsuno S., Matusiak M., Mazzucato E., McCarthy M., McCauley N., McElwee J., McGrew C., Mefodiev A., Medhi A., Mehta P., Mellet L., Menjo H., Mermod P., Metelko C., Mezzetto M., Migenda J., Migliozzi P., Mijakowski P., Miki S., Miller E.W., Minakata H., Minamino A., Mine S., Mineev O., Mitra A., Miura M., Moharana R., Mollo C.M., Mondal T., Mongelli M., Monrabal F., Moon D.H., Moon C.S., Mora F.J., Moriyama S., Mueller Th.A., Munteanu L., Murase K., Nagao Y., Nakadaira T., Nakagiri K., Nakahata M., Nakai S., Nakajima Y., Nakamura K., Nakamura KI., Nakamura H., Nakano Y., Nakaya T., Nakayama S., Nakayoshi K., Nascimento Machado L., Naseby C.E.R., Navarro-Garcia B., Needham M., Nicholls T., Niewczas K., Nishimura Y., Noah E., Nova F., Nugent J.C., Nunokawa H., Obrebski W., Ochoa-Ricoux J.P., O’Connor E., Ogawa N., Ogitsu T., Ohta K., Okamoto K., O’Keeffe H.M., Okumura K., Onishchuk Y., Orozco-Luna F., Oshlianskyi A., Ospina N., Ostrowski M., O’Sullivan E., O’Sullivan L., Ovsiannikova T., Oyama Y., Ozaki H., Pac M.Y., Paganini P., Palladino V., Paolone V., Pari M., Parsa S., Pasternak J., Pastore C., Pastuszak G., Patel D.A., Pavin M., Payne D., Peña-Garay C., Pidcott C., Pinzon Guerra E., Playfer S., Pointon B.W., Popov A., Popov B., Porwit Kamil, Posiadala-Zezula M., Poutissou J.M., Pozimski J., Pronost G., Prouse N.W., Przewlocki P., Quilain B., Quiroga A.A., Radicioni E., Radics B., Rajda P.J., Renner J., Rescigno M., Retiere F., Ricciardi G., Riccio C., Richards B., Rondio E., Rose H.J., Roskovec B., Roth S., Rott C., Rountree S.D., Rubbia A., Ruggeri A.C., Ruggles C., Russo S., Rychter A., Ryu D., Sakashita K., Samani S., Sánchez F., Sánchez M.L., Sanchez M.C., Sano S., Santos J.D., Santucci G., Sarmah P., Sashima I., Sato K., Scott M., Seiya Y., Sekiguchi T., Sekiya H., Seo J.W., Seo S.H., Sgalaberna D., Shaikhiev A., Shan Z., Shaykina A., Shimizu I., Shin C.D., Shinoki M., Shiozawa M., Sinnis G., Skrobova N., Skwarczynski K., Smy M.B., Sobczyk J., Sobel H.W., Soler F. J. P., Sonoda Y., Spina R., Spisso B., Spradlin B., Stankevich K.L., Stawarz L., Stellacci S.M., Stopa K., Studenikin A.I., Suárez Gómez S.L., Suganuma T., Suvorov S., Suwa Y., Suzuki A.T., Suzuki S.Y., Suzuki Y., Svirida D., Svoboda R., Taani M., Tada M., Takeda A., Takemoto Y., Takenaka A., Taketa A., Takeuchi Y., Takhistov V., Tanaka H., Tanaka H.A., Tanaka H.I., Tanaka M., Tashiro T., Thiesse M., Thompson L.F., Toledo J., Tomatani-Sánchez A.K., Tortone G., Tsui K.M., Tsukamoto T., Tzanov M., Uchida Y., Vagins M.R., Valder S., Valentino V., Vasseur G., Vijayvargi A., Vilela C., Vinning W. G. S., Vivolo D., Vladisavljevic T., Vogelaar R.B., Vyalkov M.M., Wachala T., Walker J., Wark D., Wascko M.O., Wendell R.A., Wilkes R.J., Wilking M.J., Wilson M.R., Wronka S., Xia J., Xie Z., Xin T., Yamaguchi Y., Yamamoto K., Yanagisawa C., Yano T., Yen S., Yershov N., Yeum D.N., Yokoyama M., Yonenaga M., Yoo J., Yu I., Yu M., Zakrzewski T., Zaldivar B., Zalipska J., Zaremba K., Zarnecki G., Ziembicki M., Zietara K., Zito M., Zsoldos S., Core-collapse supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants-neutron stars and black holes-are interesting astrophysical objects in their own right. However, despite millennia of observations and almost a century of astrophysical study, the explosion mechanism of core-collapse supernovae is not yet well understood. Hyper-Kamiokande is a next-generation neutrino detector that will be able to observe the neutrino flux from the next galactic core-collapse supernova in unprecedented detail. We focus on the first 500 ms of the neutrino burst, corresponding to the accretion phase, and use a newly-developed, high-precision supernova event generator to simulate Hyper-Kamiokandeʼs response to five different supernova models. We show that Hyper-Kamiokande will be able to distinguish between these models with high accuracy for a supernova at a distance of up to 100 kpc. Once the next galactic supernova happens, this ability will be a powerful tool for guiding simulations toward a precise reproduction of the explosion mechanism observed in nature.
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- 2022
4. The Growth, Yield and Seed Quality in Broadcast Cultivation of Soybean Under the Low Density Seedling Establishment
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Hiroyuki Sekiya, Hidefumi Saito, Toshiyuki Abe, and Toshinori Matsunami
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Agronomy ,biology ,Seedling ,media_common.quotation_subject ,Yield (finance) ,Genetics ,Low density ,Quality (business) ,biology.organism_classification ,Agronomy and Crop Science ,Food Science ,media_common ,Mathematics - Published
- 2020
5. Measurement of the Anisotropic Response of the ZnWO4 Crystal for Developing the Direction-Sensitive Dark Matter Detector
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Shunsuke Kurosawa, Akihiro Yamaji, Juan W. Pedersen, Koichi Ichimura, and Hiroyuki Sekiya
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Nuclear and High Energy Physics ,Scintillation ,Materials science ,Yield (engineering) ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Astrophysics::High Energy Astrophysical Phenomena ,Scintillator ,Neutron radiation ,01 natural sciences ,Crystal ,Recoil ,Nuclear Energy and Engineering ,0103 physical sciences ,Neutron ,Electrical and Electronic Engineering ,Atomic physics ,Nuclear Experiment ,Anisotropy - Abstract
We measured the scintillation light yield of ZnWO4 crystals using a quasi-monochromatic neutron beam energy of 865 keV. Irradiating the neutron beam on two surfaces, which are almost perpendicular to the crystal axis, the light yield of oxygen recoil was measured. The obtained light yield ratio of a neutron recoil to gamma-ray-induced electron recoil for two surfaces was 0.235 ± 0.026 and 0.199 ± 0.020, respectively, which corresponds to 15.3% of anisotropy for ~200-keV nuclear recoils of this crystal. This property can be applied to a direction-sensitive dark matter (DM) detector.
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- 2020
6. Impact of Intangibles on Corporate Value
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Shu Umeda, Hiroyuki Sekiya, and Kazunori Ito
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Value (ethics) ,Empirical research ,media_common.quotation_subject ,Strategic management ,Business ,Reputational risk ,Creativity ,Affect (psychology) ,Industrial organization ,Reputation ,media_common ,Management control system - Abstract
Numerous intangibles can affect corporate value; for example, human assets, organizational assets, information assets, and corporate reputation. As discussions about intangibles have intensified, the number of empirical studies focused on the relationship between intangibles and corporate value has increased. Previous studies have demonstrated the relationship between intangibles and corporate value as individual or combined elements; however, no previous empirical study has incorporated strategies into the analysis of the relationship between intangibles and corporate value. The present study analyzes how different strategies and management control systems impact intangibles, the source of corporate value. Three discoveries were made. The first reveals that intangibles consist of corporate reputation, innovation, information assets, and organizational assets, but not human assets, which turn out to be linked to innovation. This result indicates that the skills and creativity of employees play a major role in innovation. The second discovery shows that corporate value consists of economic value, social value, and organizational value. This result agrees with the view of others who have asserted that all stakeholders are in an equal relationship. Therefore, it can be said that companies take various stakeholders into consideration when creating value. The third discovery shows that when different strategies and management control systems are adopted, different intangibles affect corporate values. For instance, in prospector companies, reputation does not impact corporate value; these firms aim to create new markets through innovation, and are less concerned with reducing reputational risk. By contrast, in defender companies, innovation does not affect corporate value; these firms place emphasis on preserving their reputation to retain existing markets and customers.
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- 2020
7. Amoeba Management and Enabling Control: A Field Study of Small and Medium-Sized Public Hospitals
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Hiroyuki Sekiya
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- 2022
8. Precise measurement of the scintillation decay constant of the ZnWO4 crystal
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Masaru Shibata, Koichi Ichimura, and Hiroyuki Sekiya
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Physics ,Scintillation ,Physics - Instrumentation and Detectors ,Yield (engineering) ,FOS: Physical sciences ,General Physics and Astronomy ,Instrumentation and Detectors (physics.ins-det) ,High Energy Physics - Experiment ,Crystal ,High Energy Physics - Experiment (hep-ex) ,Perpendicular ,High Energy Physics::Experiment ,Irradiation ,Atomic physics ,Exponential decay ,Anisotropy ,Constant (mathematics) - Abstract
The scintillation decay time constant of a ZnWO$_4$ crystal irradiated with $\alpha$-particles from $^{241}$Am was precisely investigated, and was found to depend on the incident direction of the $\alpha$-particles on the crystal. The longest decay time constant ($24.3\pm0.6~\mu$s) was obtained on the surface perpendicular to the b-axis of the crystal (Surface B). On Surfaces A and C, the decay constants were $20.0$ and $21.3\pm0.2~\mu$s, respectively. The scintillation yield of the ZnWO$_4$ was also anisotropic and depended on the incident direction of the heavy particles. The maximum yield was achieved on surface B, suggesting a correlation between the light yield and scintillation decay time constant of ZnWO$_4$ crystals., Comment: 9 pages, 8 figures, Accepted for PTEP
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- 2021
9. Search for neutrinos in coincidence with gravitational wave events from the LIGO–Virgo O3a observing run with the Super-Kamiokande detector
- Author
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Y. Kanemura, A. Giampaolo, W. R. Kropp, Y. Hayato, A. A. Sztuc, P. Mehta, Pablo Fernandez, T. Hasegawa, F. Iacob, D. Bravo-Berguño, Y. Kuno, T. Towstego, O. Drapier, H. Ito, Sei-ichiro Watanabe, G.D. Barr, J. Bian, N. Piplani, S. Miki, S. V. Cao, M. R. Vagins, K. Martens, Y. Takemoto, L. F. Thompson, S. Imaizumi, A. Coffani, O. Stone, J. S. Jang, M. Taani, Seiko Hirota, T. Kikawa, M. Gonin, J. Xia, Masahiro Kuze, A. Goldsack, S. Han, M. J. Wilking, R. A. Wendell, M. B. Smy, Junjie Jiang, F. Nova, E. Radicioni, Kimihiro Okumura, B. Zaldivar, J. Y. Kim, S. Izumiyama, A. Orii, S. Mine, L. Cook, J. Migenda, John Hill, A. T. Suzuki, K. Okamoto, T. Horai, R. Sasaki, J. F. Martin, J. Kameda, B. Bodur, Yuichi Oyama, T. Nakadaira, J. McElwee, J. L. Stone, I. T. Lim, F. Di Lodovico, D. L. Wark, Vincenzo Berardi, Y. Maekawa, S. El Hedri, T. Sekiguchi, L. Ludovici, Th. A. Mueller, N. Ospina, K. Ohta, G. De Rosa, Hiromasa Tanaka, V. Takhistov, Hiroaki Menjo, C. Simpson, J. G. Learned, K. M. Tsui, P. Mijakowski, J. Y. Yang, K. Abe, J. L. Raaf, M. Tsukada, M. Thiesse, K. Iwamoto, H. K. Tanaka, Yasunari Suzuki, S. Samani, G. D. Megias, A. Konaka, M. G. Catanesi, N. J. Griskevich, Y. Nishimura, David Hadley, F. d. M. Blaszczyk, M. Inomoto, S. Locke, Masaki Ishitsuka, M. Jakkapu, Yusuke Koshio, S. Sakai, D. Barrow, M. Lamoureux, P. Weatherly, P. de Perio, T. Boschi, T. Niwa, K. Nakamura, T. Yoshida, A. Pritchard, C. K. Jung, R. Matsumoto, M. Hartz, T. Shiozawa, C. Vilela, Ahmed Ali, M. Koshiba, Masato Shiozawa, H. Ozaki, T. Tashiro, S. Moriyama, S. Nakayama, R. Akutsu, L. H. V. Anthony, Hussain Kitagawa, S. J. Jenkins, B. Jamieson, R. G. Park, Song Chen, P. Paganini, M. Miura, Masayuki Nakahata, H. W. Sobel, Yuuki Nakano, Y. Uchida, B. D. Xu, Ll. Marti, Kate Scholberg, K. Hagiwara, Yutaka Nakajima, B. W. Pointon, D. Martin, Manabu Tanaka, K. Sato, G. Pintaudi, H. Okazawa, M. Ikeda, L. Wan, S. Molina Sedgwick, Hirokazu Ishino, Y. Kotsar, N. F. Calabria, Yuto Ashida, C. Yanagisawa, E. Kearns, C. Bronner, Masashi Yokoyama, Intae Yu, K. Yasutome, T. Nakamura, G. Collazuol, J. Walker, L. N. Machado, N. Ogawa, K. Nishijima, T. Wester, L. Bernard, T. Ishizuka, M. Harada, Tsuyoshi Nakaya, Y. Nagao, Atsushi Takeda, A. Minamino, Rongkun Wang, S. B. Kim, M. Shinoki, A. K. Ichikawa, N. McCauley, L. Labarga, T. Kobayashi, M. Malek, N. W. Prouse, B. Richards, T. Matsubara, S. Yamamoto, C. W. Walter, K. Sakashita, J. Feng, M. Posiadala-Zezula, W. Ma, B. Quilain, Hiroyuki Sekiya, Y. Kataoka, Y. Fukuda, Y. Takeuchi, T. Kajita, Takatomi Yano, M. Friend, M. Mori, Y. Sonoda, S. Sano, Yoshitaka Itow, G. Pronost, Shintaro Ito, S. Zsoldos, T. Tsukamoto, T. Okada, T. Ishida, A. Takenaka, UAM. Departamento de Física Teórica, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Super-Kamiokande, Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Kameda, J., Kanemura, Y., Kataoka, Y., Miki, S., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, R., Xia, J., Megias, G. D., Bravo-Berguno, D., Labarga, L., Marti, Ll., Zaldivar, B., Pointon, B. W., Blaszczyk, F. D. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Mine, S., Smy, M. B., Sobel, H. W., Takhistov, V., Weatherly, P., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Gonin, M., Mueller, Th. A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Martin, D. G. R., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Nascimento Machado, L., de Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Ospina, N., Ludovici, L., Maekawa, Y., Nishimura, Y., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Jakkapu, M., Kobayashi, T., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Kotsar, Y., Nakano, Y., Ozaki, H., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Fernandez, P., Mccauley, N., Mehta, P., Pritchard, A., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Mijakowski, P., Jiang, J., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Hagiwara, K., Harada, M., Horai, T., Ishino, H., Ito, S., Koshio, Y., Kitagawa, H., Ma, W., Piplani, N., Sakai, S., Kuno, Y., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Simpson, C., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Migenda, J., Molina Sedgwick, S., Taani, M., Zsoldos, S., Yang, J. Y., Jenkins, S. J., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Yu, I., Nishijima, K., Koshiba, M., Iwamoto, K., Nakajima, Y., Ogawa, N., Yokoyama, M., Martens, K., Vagins, M. R., Izumiyama, S., Kuze, M., Tanaka, M., Yoshida, T., Inomoto, M., Ishitsuka, M., Ito, H., Matsumoto, R., Ohta, K., Shinoki, M., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Hartz, M., Konaka, A., de Perio, P., Prouse, N. W., Chen, S., Xu, B. D., Posiadala-Zezula, M., Hadley, D., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sano, S., Sasaki, R., and Ichikawa, A. K.
- Subjects
Astrophysics ,KAMIOKANDE ,Neutrino Astronomy ,GeV ,01 natural sciences ,7. Clean energy ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,Neutrino astronomy Gravitational wave astronomy High energy astrophysics Black holes Compact objects Neutron stars Transient sources ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,LIGO ,010303 astronomy & astrophysics ,QC ,QB ,Physics ,High Energy Astrophysical Phenomena (astro-ph.HE) ,energy: emission ,Black holes ,Neutrino ,Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Instrumentation and Methods for Astrophysics ,High energy astrophysics ,High-energy astronomy ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Gravitational-wave astronomy ,Neutron stars ,neutrino: spectrum ,0103 physical sciences ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,Compact objects ,flavor ,010308 nuclear & particles physics ,Gravitational wave ,background ,gravitational radiation ,Física ,Astronomy and Astrophysics ,trigger ,Transient sources ,flux ,Neutron star ,VIRGO ,Space and Planetary Science ,High Energy Physics::Experiment ,Gravitational wave astronomy ,Neutrino astronomy ,Super-Kamiokande ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,statistical - Abstract
The Super-Kamiokande detector can be used to search for neutrinos in time coincidence with gravitational waves detected by the LIGO-Virgo Collaboration (LVC). Both low-energy ($7-100$ MeV) and high-energy ($0.1-10^5$ GeV) samples were analyzed in order to cover a very wide neutrino spectrum. Follow-ups of 36 (out of 39) gravitational waves reported in the GWTC-2 catalog were examined; no significant excess above the background was observed, with 10 (24) observed neutrinos compared with 4.8 (25.0) expected events in the high-energy (low-energy) samples. A statistical approach was used to compute the significance of potential coincidences. For each observation, p-values were estimated using neutrino direction and LVC sky map ; the most significant event (GW190602_175927) is associated with a post-trial p-value of $7.8\%$ ($1.4\sigma$). Additionally, flux limits were computed independently for each sample and by combining the samples. The energy emitted as neutrinos by the identified gravitational wave sources was constrained, both for given flavors and for all-flavors assuming equipartition between the different flavors, independently for each trigger and by combining sources of the same nature., Comment: 16 pages, 5 figures. v2: adding corrections from The Astrophysical Journal review
- Published
- 2021
10. Diffuse Supernova Neutrino Background search at Super-Kamiokande with neutron tagging
- Author
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K. Sakashita, A. T. Suzuki, K. Okamoto, M. Posiadala-Zezula, T. Nakadaira, Takuto Suganuma, David Wark, Y. Kataoka, Y. Takeuchi, S. Sakai, Y. Nishimura, Shintaro Ito, Atsushi Takeda, G.D. Barr, B. Quilain, E. Kearns, T. Yano, Tatsuya Kikawa, L. Marti, Yasuhiro Nakajima, Masashi Yokoyama, Tatsushi Kinoshita, Joanna Zalipska, Y. Nagao, A. Minamino, Henry W. Sobel, Marco Mattiazzi, J. McElwee, J. Y. Kim, M. Shinoki, Kenzo Nakamura, M. Friend, N. W. Prouse, Yoshihiro Suzuki, H. A. Tanaka, C. W. Walter, A. Coffani, T. Ishizuka, N. McCauley, Tsuyoshi Nakaya, O. Stone, M. Malek, S. Miki, Takashi Kobayashi, David Hadley, T. Hasegawa, C. K. Jung, S. Yamamoto, Makoto Miura, Yuichi Oyama, O. Drapier, M. Ikeda, Masato Shiozawa, L. Ludovici, A. Takenaka, Hiroyuki Sekiya, S. Izumiyama, T. Matsubara, N. Piplani, Soo-Bong Kim, J. Y. Yang, Y. Fukuda, L. Wan, A. Ali, J. Feng, T. Tsukamoto, S. Locke, S. Mohan Lakshmi, A. Konaka, Hiroaki Menjo, M. Koshiba, Masahiro Kuze, F. Nova, M. Hartz, Takaaki Kajita, R. G. Park, Yuuki Nakano, Yusuke Koshio, R. Sasaki, D. Barrow, Thomas A. Mueller, T. Ishida, B. W. Pointon, Natalv Ospina, Kate Scholberg, K. Yasutome, John Fraser Martin, James Hill, T. Tashiro, Hirokazu Ishino, S. J. Jenkins, E. Radicioni, Marcus O'Flaherty, T. Nakamura, R. Matsumoto, G. Collazuol, Intae Yu, Mark Scott, N. Ogawa, J. L. Raaf, C. Yanagisawa, Yoshinari Hayato, L. Bernard, K. Martens, M. Jakkapu, S. Mine, K. M. Tsui, A. Goldsack, S. Nakayama, M. Taani, T. Boschi, R. A. Wendell, M. Mori, M. Lamoureux, Y. Sonoda, Hiroshi Ito, S. Sano, K. Nishijima, Yoshitaka Itow, T. Wester, S. Han, G. Pronost, H. Okazawa, M. J. Wilking, D. Martin, K. Sato, A. K. Ichikawa, J. Kameda, F. Iacob, P. Mijakowski, K. Abe, Shuhei Watanabe, B. Bodur, Y. Kanemura, A. Giampaolo, Pablo Fernandez, P. Mehta, T. Towstego, S. Zsoldos, Vincenzo Berardi, S. Cao, William R. Kropp, T. Sekiguchi, S. Chen, G. D. Megias, J. Bian, M. Gonin, J. Xia, Sonia El Hedri, M. Thiesse, K. Iwamoto, C. Bronner, Gianfranca De Rosa, J. S. Jang, H. Ozaki, Hussain Kitagawa, B. Jamieson, Patrick de Perio, Katsuki Hiraide, K. Nakamura, Y. Maekawa, Jeff N. Griskevich, S. Moriyama, G. Pintaudi, Masayuki Nakahata, Y. Uchida, N. F. Calabria, J. G. Learned, H. K. Tanaka, P. Paganini, B. D. Xu, S. Samani, M. G. Catanesi, Lester D.R. Thompson, M. R. Vagins, Y. Kotsar, John Walker, L. Cook, I. T. Lim, L. H. V. Anthony, R. Akutsu, C. Vilela, FD Lodovico, Junjie Jiang, V. Takhistov, Justyna Lagoda, Jingyuan Gao, W. Ma, L. Labarga, B. Richards, Kimihiro Okumura, Yasuhiro Takemoto, Masaki Ishitsuka, M. Inomoto, A. A. Sztuc, M. B. Smy, B. Zaldivar, J. Migenda, L. N. Machado, and M. Harada
- Subjects
Physics ,Supernova ,Neutron ,Astrophysics ,Neutrino ,Super-Kamiokande - Published
- 2021
11. Low energy radioactivity BG model in Super-Kamiokande detector from SK-IV data
- Author
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S. J. Jenkins, K. Nakamura, M. R. Vagins, M. Taani, J. L. Raaf, John Walker, H. Okazawa, Masaki Ishitsuka, S. Moriyama, A. A. Sztuc, P. Mehta, S. Miki, Masayuki Nakahata, Y. Uchida, I. T. Lim, L. H. V. Anthony, Junjie Jiang, V. Takhistov, Yoshinari Hayato, T. Towstego, M. Jakkapu, J. Y. Kim, Y. Maekawa, Patrick de Perio, Atsushi Takeda, T. Boschi, Yasuhiro Nakajima, J. G. Learned, Shuhei Watanabe, A. K. Ichikawa, T. Yano, Hiroshi Ito, A. T. Suzuki, K. Okamoto, Vincenzo Berardi, J. Kameda, S. Izumiyama, Joanna Zalipska, H. K. Tanaka, L. Cook, A. Coffani, S. Samani, M. G. Catanesi, O. Drapier, M. B. Smy, B. Zaldivar, Y. Takeuchi, J. Migenda, O. Stone, B. Bodur, T. Nakadaira, Takashi Kobayashi, P. Mijakowski, S. Zsoldos, Sonia El Hedri, T. Hasegawa, A. Ali, Katsuki Hiraide, Makoto Miura, K. Nishijima, M. Thiesse, K. Iwamoto, Justyna Lagoda, T. Wester, F. Iacob, Jingyuan Gao, Y. Nagao, A. Minamino, S. Mohan Lakshmi, Lester D.R. Thompson, M. Hartz, L. N. Machado, Kenzo Nakamura, K. Sakashita, W. Ma, T. Matsubara, William R. Kropp, T. Sekiguchi, S. Chen, M. Shinoki, M. Harada, N. McCauley, S. Sakai, M. Posiadala-Zezula, R. Akutsu, Marco Mattiazzi, J. Feng, M. Friend, Yuuki Nakano, K. Abe, Shintaro Ito, M. Malek, N. Piplani, B. W. Pointon, S. Yamamoto, Y. Kanemura, A. Giampaolo, Kate Scholberg, Hiroaki Menjo, N. W. Prouse, C. W. Walter, E. Kearns, David Wark, P. Paganini, Kimihiro Okumura, Takaaki Kajita, C. Vilela, T. Tashiro, FD Lodovico, M. Koshiba, B. D. Xu, Masashi Yokoyama, G.D. Barr, Yasuhiro Takemoto, T. Nakamura, S. Locke, Y. Kataoka, James Hill, M. Inomoto, Intae Yu, R. G. Park, Tatsuya Kikawa, G. D. Megias, Pablo Fernandez, R. Matsumoto, L. Marti, N. Ogawa, G. Pintaudi, David Hadley, Hiroyuki Sekiya, J. S. Jang, Hirokazu Ishino, N. Jeff Griskevich, L. Labarga, Soo-Bong Kim, S. Han, L. Bernard, T. Ishizuka, C. Yanagisawa, Tsuyoshi Nakaya, Y. Fukuda, L. Wan, B. Richards, T. Tsukamoto, K. Yasutome, Marcus O'Flaherty, C. K. Jung, Yuichi Oyama, M. Ikeda, A. Goldsack, N. F. Calabria, S. Nakayama, G. Collazuol, Mark Scott, Masato Shiozawa, R. A. Wendell, L. Ludovici, J. Y. Yang, T. Ishida, K. Martens, S. Mine, K. M. Tsui, Y. Kotsar, Y. Nishimura, Masahiro Kuze, F. Nova, R. Sasaki, A. Konaka, M. Lamoureux, Yusuke Koshio, D. Martin, J. Bian, H. Ozaki, Hussain Kitagawa, B. Jamieson, Natalv Ospina, S. Cao, D. Barrow, John Fraser Martin, A. Takenaka, K. Sato, C. Bronner, M. Gonin, J. Xia, Gianfranca De Rosa, Tatsushi Kinoshita, Yoshihiro Suzuki, Henry W. Sobel, J. McElwee, H. A. Tanaka, E. Radicioni, B. Quilain, M. Mori, Y. Sonoda, S. Sano, Yoshitaka Itow, Takuto Suganuma, G. Pronost, M. J. Wilking, Thomas A. Mueller, Pronost, Guillaume, Abe, Ko, Bronner, Christophe, Hayato, Yoshinari, Hiraide, Katsuki, Ikeda, Motoyasu, Kameda, Jun, Kanemura, Yuki, Kataoka, Yousuku, Miki, Shintaro, Miura, Makoto, Moriyama, Shigetaka, Nagao, Yoshiki, Nakahata, Masayuki, Nakayama, Shoei, Okamoto, Kohei, Sekiya, Hiroyuki, Shiozawa, Masato, Sonoda, Yutaro, Suzuki, Yoichiro, Takeda, Atsushi, Takemoto, Yasuhiro, Takenaka, Akira, Tanaka, Hidekazu, Watanabe, Shuhei, Yano, Takatomi, Han, Seungho, Kajita, Takaaki, Okumura, Kimihiro, Tashiro, Takuya, Xia, Junjie, Megias, Guillermo, Labarga, Lui, Marti, Llui, Zaldivar, Bryan, Pointon, Barry W., Kearns, Edward, Raaf, Jennifer L., Wan, Linyan, Wester, Thoma, Bian, Jianming, Griskevich, N. Jeff, Kropp, William R., Locke, Scott, Mine, Shunichi, Smy, Michael, Sobel, Henry W., Takhistov, Volodymyr, Hill, Jame, Kim, Jae Yool, Lim, In Taek, Park, Ryeong Gyoon, Bodur, Baran, Scholberg, Kate, Walter, Chri, Bernard, Laura, Coffani, Alice, Drapier, Olivier, El Hedri, Sonia, Giampaolo, Alberto, Gonin, Michel, Mueller, Thomas A., Paganini, Pascal, Quilain, Benjamin, Ishizuka, Takeharu, Nakamura, Taku, Jang, Jae Seung, Learned, John G., Cao, Son, Anthony, Lauren H. V., Martin, Daniel, Scott, Mark, Sztuc, Artur A., Uchida, Yoshi, Berardi, Vincenzo, Catanesi, Maria Gabriella, Radicioni, Emilio, Calabria, Nicola F., Machado, Lucas N., De Rosa, Gianfranca, Collazuol, Gianmaria, Iacob, Fabio, Lamoureux, Mathieu, Mattiazzi, Marco, Ospina, Natalv, Ludovici, Lucio, Maekawa, Yuto, Nishimura, Yasuhiro, Friend, Megan, Hasegawa, Takuya, Ishida, Taku, Kobayashi, Takashi, Jakkapu, Mahesh, Matsubara, Tsunayuki, Nakadaira, Takeshi, Nakamura, Kenzo, Oyama, Yuichi, Sakashita, Ken, Sekiguchi, Tetsuro, Tsukamoto, Toshifumi, Boschi, Tommaso, Di Lodovico, Francesca, Gao, Jingyuan, Migenda, Jost, Taani, Mahdi, Zsoldos, Stephane, Nakano, Yuuki, Ozaki, Hironori, Suzuki, Atsumu, Takeuchi, Yasuo, Yamamoto, Shotaro, Kotsar, Yurii, Ali, Ajmi, Feng, Jiahui, Kikawa, Tatsuya, Mori, Masamitsu, Nakaya, Tsuyoshi, Wendell, Roger, Yasutome, Kenji, Fernández, Pablo, Mccauley, Neil, Mehta, Pruthvi, Tsui, Ka Ming, Fukuda, Yoshiyuki, Itow, Yoshitaka, Menjo, Hiroaki, Sato, Kazufumi, Lagoda, Justyna, Lakshmi, S. Mohan, Mijakowski, Piotr, Zalipska, Joanna, Jiang, Junjie, Jung, Chang K., Vilela, Cristovao, Wilking, Michael, Yanagisawa, Chiaki, Harada, Masayuki, Ishino, Hirokazu, Ito, Shintaro, Kitagawa, Hussain, Koshio, Yusuke, Ma, Wenjie, Piplani, Nishtha, Sakai, Seiya, Barr, Gile, Barrow, Danial, Cook, Laurence, Goldsack, Alexander, Samani, Soniya, Wark, David, Nova, Federico, Yang, Jeong Yeol, Jenkins, Sam J., Malek, Matthew, Mcelwee, Jordan, Stone, Owen, Thiesse, Matthew D., Thompson, Lee F., Okazawa, Hiroko, Kim, Soo Bong, Yu, Intae, Ichikawa, Atsuko, Nakamura, Kiseki, Nishijima, Kyoshi, Koshiba, Masatoshi, Iwamoto, Konosuke, Nakajima, Yasuhiro, Ogawa, Natsumi, Yokoyama, Masashi, Martens, Kai, Vagins, Mark, Kuze, Masahiro, Izumiyama, Shota, Inomoto, Michitaka, Ishitsuka, Masaki, Ito, Hiroshi, Kinoshita, Tatsushi, Matsumoto, Ryo, Shinoki, Masataka, Suganuma, Takuto, Martin, John Fraser, Tanaka, Hirohisa, Towstego, Trevor, Akutsu, Ryosuke, de Perio, Patrick, Hartz, Mark, Konaka, Akira, Prouse, Nick, Chen, Shaomin, Xu, Benda D., Posiadala-Zezula, Magdalena, Hadley, David, O'Flaherty, Marcu, Richards, Benjamin, Jamieson, Blair, Walker, John, Minamino, Akihiro, Pintaudi, Ggiorgio, Sano, Shiochi, and Sasaki, Ryota
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Physics ,Physics::Instrumentation and Detectors ,Solar neutrino ,Physics::Medical Physics ,Detector ,Water source ,chemistry.chemical_element ,Radon ,Nuclear physics ,Low energy ,chemistry ,High Energy Physics::Experiment ,Neutrino ,Super-Kamiokande ,Solar data - Abstract
The radioactivity background are among the most dangerous background for low energy neutrino analysis in Super-Kamiokande (SK), like the solar neutrino analysis. Among them, the main contribution is coming from $^{222}$Rn, which is spread in the detector's water due to the water source and to the photo multiplier (PMT) emanations. Up to now, its exact distribution in the detector was not known. Using our knowledge of the radon concentration in the detector water, and the SK-IV solar data, we developed a model of the radon distribution in the detector. The uncertainty on the Rn concentration associated with this model was estimated to be $\sim0.1$ mBq/m$^{3}$
- Published
- 2021
12. First T2K measurement of transverse kinematic imbalance in the muon-neutrino charged-current single- π+ production channel containing at least one proton
- Author
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T. Arihara, Y. Hayato, J. R. Wilson, L. Ludovici, S. V. Cao, M. Gonin, T. Honjo, S. Moriyama, S. Roth, D. G. Payne, A. Nakamura, W. C. Parker, L. Molina Bueno, R. Zaki, C. E. R. Naseby, G. D. Megias, S. K. Lin, C. Alt, J. Parlone, M. Tzanov, J. Kisiel, K. Matsushita, M. Zito, Hidekazu Kakuno, G. Yang, N. Izumi, A. K. Ichikawa, K. Niewczas, Patrick Dunne, J. Kameda, A. Eguchi, C. Touramanis, Antonio Ereditato, N. Yershov, C. Giganti, S. Kuribayashi, R. Okada, B. Jamieson, A. Zalewska, C. Jesús-Valls, Kevin Scott McFarland, D. Cherdack, S. Valder, K. Abe, S. Suvorov, R. P. Litchfield, P. Hamacher-Baumann, K. Yasutome, A. Shvartsman, N. Teshima, D. Bravo Berguño, G. Pintaudi, Y. Fujii, C. Mauger, S. Manly, Federico Sanchez, C. McGrew, L. Koch, C. Andreopoulos, Masato Shiozawa, S. R. Dennis, C. M. Schloesser, Xianguo Lu, M. J. Wilking, Gareth J. Barker, A. Beloshapkin, A. Takeda, B. A. Popov, D. Vargas, M. Grassi, T. A. Doyle, E. Radicioni, Vincenzo Berardi, D. Barrow, Etam Noah, F. J. P. Soler, Alexander Finch, J. Chakrani, A. Hiramoto, T. Hasegawa, A. Gorin, J. Dumarchez, K. Fusshoeller, R.P. Kurjata, S. P. Kasetti, T. Ogawa, L. Munteanu, M. Tajima, Yusuke Koshio, A. T. Suzuki, Y. Nagai, C. K. Jung, Alan Cosimo Ruggeri, A. Kostin, André Rubbia, T. Matsubara, T. Vladisavljevic, L. Magaletti, S. Bhadra, L. Cook, F. Iacob, L. Berns, Yuuki Nakano, R. Fukuda, D. L. Wark, Y. Tanihara, G. C. Penn, G. Vasseur, Y. Kataoka, Th. A. Mueller, Thorsten Lux, A. Maurel, F. Di Lodovico, M. Hartz, A. Bubak, C. Pistillo, Kate Scholberg, T. Sekiguchi, Y. Asada, M. Tada, M. Jakkapu, Shigeki Aoki, M. M. Khabibullin, E. A.G. Goodman, E. T. Atkin, R. Akutsu, T. Okusawa, K. Iwamoto, W. Shorrock, Jaroslaw Pasternak, G. Fiorillo, T. Kikawa, C. Vilela, J. Xia, S. Parsa, M. Ishitsuka, Yu. G. Kudenko, N. C. Hastings, H. K. Tanaka, D. A. Harris, K. Nishizaki, Marco Laveder, C. Yanagisawa, Y. Takeuchi, J. P. Coleman, P. B. Jurj, L. Wan, V. Paolone, Oleg Mineev, A. Dergacheva, Y. Nishimura, T. Yano, H. Nakamura, W. G. S. Vinning, C. Riccio, T. Dealtry, T. Nakadaira, S. Dolan, K. Wood, L. Pickering, E. Mazzucato, Y. Oyama, T. Kobayashi, M. Ziembicki, H. Kikutani, Y. Nakajima, C. Densham, A. Cudd, C. C. Delogu, J. C. Nugent, S. King, G. Zarnecki, A. D. Marino, G. De Rosa, J. G. Walsh, J. Lagoda, Yoshihiro Suzuki, M. Buizza Avanzini, R. A. Owen, N. Thamm, T. Maruyama, Samira Hassani, T. V. Ngoc, A. Cervera, K. Yamamoto, M. Hogan, L. Maret, G.D. Barr, K. Nakamura, Yufeng Wang, D. R. Hadley, A. C. Weber, J. A. Nowak, F. Bench, T. Ishida, T. Odagawa, A. Bravar, Ahmed Ali, A. Shaikhiev, P. N. Ratoff, T. Kutter, A. A. Sztuc, M. Batkiewicz-Kwasniak, T. Wachala, K. Zaremba, M. Tani, L. S.M. Lakshmi, L. Mellet, N. Akhlaq, M. Lawe, Jan T. Sobczyk, Lars Eklund, C. Bronner, T. Bonus, T. Kobata, Teppei Katori, M. B. Smy, L. N. Machado, R. Wendell, A. Rychter, M. Posiadala-Zezula, M. Kabirnezhad, C. Wret, K. Mavrokoridis, G. Collazuol, S. B. Boyd, T. Towstego, C. Francois, E. Rondio, P. Jonsson, B. Quilain, N. McCauley, A. Konaka, D. Munford, L. Labarga, J. McElwee, K. Skwarczynski, A. Minamino, Mark Scott, Stephanie Bron, L. O'Sullivan, T. Yoshida, K. Porwit, C. Wilkinson, C. Ruggles, G. Santucci, Y. Awataguchi, Hiroyuki Sekiya, F. Nova, S. L. Liu, A. Blondel, M. Malek, J. Holeczek, Kendall Mahn, A. Izmaylov, T. Radermacher, M. Cicerchia, Lester D.R. Thompson, M. Mezzetto, K. Kowalik, M. Yu, Masashi Yokoyama, M. Vagins, N. T. Hong Van, A. N. Khotjantsev, J. Zalipska, S. Mine, J. Walker, M. Guigue, M. Miura, K. M. Tsui, S. L. Cartwright, Tsuyoshi Nakaya, M. G. Catanesi, D. Coplowe, Roberto Spina, L. Marti-Magro, H. Sobel, T. S. Nonnenmacher, J. J. Jiang, A. Blanchet, M. Lamoureux, S. Zsoldos, V. Palladino, S. Nakayama, Y. Seiya, A. Longhin, M. Friend, A. Shaykina, Michelangelo Pari, Y. H. Xu, M. Pavin, S. J. Jenkins, T. Tsukamoto, Y. Ashida, Y. Fukuda, G. Christodoulou, K. Sakashita, M. Kuze, Masayuki Nakahata, C. Pidcott, Y. Uchida, Y. Yoshimoto, D. Sgalaberna, M. Reh, L. L. Kormos, B. Radics, B. Bourguille, A. Mefodiev, M. Ikeda, K. Nakayoshi, Kimihiro Okumura, S. Bolognesi, Sy Suzuki, M. Antonova, Y. Katayama, S. Emery-Schrenk, D. Douqa, W. Toki, H. M. O'Keeffe, Y. Sonoda, V. Q. Nguyen, M. O. Wascko, E. Kearns, and D. Pershey
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Physics ,Proton ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Monte Carlo method ,T2K experiment ,01 natural sciences ,7. Clean energy ,Nuclear physics ,Transverse plane ,0103 physical sciences ,Muon neutrino ,Neutrino ,010306 general physics ,Event (particle physics) ,Charged current - Abstract
This paper reports the first T2K measurement of the transverse kinematic imbalance in the single-$\pi^+$ production channel of neutrino interactions. We measure the differential cross sections in the muon-neutrino charged-current interaction on hydrocarbon with a single $\pi^+$ and at least one proton in the final state, at the ND280 off-axis near detector of the T2K experiment. The extracted cross sections are compared to the predictions from different neutrino-nucleus interaction event generators. Overall, the results show a preference for models which have a more realistic treatment of nuclear medium effects including the initial nuclear state and final-state interactions.
- Published
- 2021
13. Search for sub-GeV dark matter by annual modulation using XMASS-I detector
- Author
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M. Miyasaka, Atsushi Takeda, Ken-Ichi Fushimi, Masayuki Nakahata, Lee Min-Kie, B. D. Xu, K. Martens, Kentaro Miuchi, G. Kanzaki, B. S. Yang, K. Kanzawa, Kimiaki Masuda, T. Suzuki, Koichi Ichimura, Katsuki Hiraide, Yoshihiro Suzuki, Y. Takeuchi, K.B. Lee, Yasuhiro Kishimoto, K. Nishijima, Shigetaka Moriyama, N. Oka, Masaki Yamashita, M. Kobayashi, Hiroyuki Sekiya, Y. Fukuda, Katsuhiko Sato, Shogo Nakamura, Nam Young Kim, Hiroshi Ogawa, Yong Hamb Kim, Shigeki Tasaka, Y. D. Kim, K. Kobayashi, Ko Abe, and Yoshitaka Itow
- Subjects
Nuclear and High Energy Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Physics - Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Dark matter ,chemistry.chemical_element ,FOS: Physical sciences ,Electron ,01 natural sciences ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,Xenon ,Recoil ,0103 physical sciences ,Electron equivalent ,Nuclear Experiment (nucl-ex) ,010306 general physics ,Nuclear Experiment ,Physics ,010308 nuclear & particles physics ,Detector ,Bremsstrahlung ,Instrumentation and Detectors (physics.ins-det) ,lcsh:QC1-999 ,chemistry ,Modulation ,High Energy Physics::Experiment ,lcsh:Physics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
A search for dark matter (DM) with mass in the sub-GeV region (0.32-1 GeV) was conducted by looking for an annual modulation signal in XMASS, a single-phase liquid xenon detector. Inelastic nuclear scattering accompanied by bremsstrahlung emission was used to search down to an electron equivalent energy of 1 keV. The data used had a live time of 2.8 years (3.5 years in calendar time), resulting in a total exposure of 2.38 ton-years. No significant modulation signal was observed and 90% confidence level upper limits of $1.6 \times 10^{-33}$ cm$^2$ at 0.5 GeV was set for the DM-nucleon cross section. This is the first experimental result of a search for DM mediated by the bremsstrahlung effect. In addition, a search for DM with mass in the multi-GeV region (4-20 GeV) was conducted with a lower energy threshold than previous analysis of XMASS. Elastic nuclear scattering was used to search down to a nuclear recoil equivalent energy of 2.3 keV, and upper limits of 2.9 $\times$10$^{-42}$ cm$^2$ at 8 GeV was obtained., 7 pages, 5 figures
- Published
- 2019
14. Search for WIMP-129Xe inelastic scattering with particle identification in XMASS-I
- Author
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Kimiaki Masuda, Yong Hamb Kim, Y. Takeuchi, Y. D. Kim, Katsuhiko Sato, Kentaro Miuchi, K.B. Lee, Masaki Yamashita, K. Martens, N. Oka, Nam Young Kim, Hiroshi Ogawa, T. Suzuki, K. Kobayashi, Yoshitaka Itow, Yoshihiro Suzuki, K. Kanzawa, Lee Min-Kie, Masayuki Nakahata, Shogo Nakamura, B. D. Xu, Hiroyuki Sekiya, Atsushi Takeda, Y. Fukuda, Shigetaka Moriyama, Katsuki Hiraide, Ken-Ichi Fushimi, G. Kanzaki, Motoki Kobayashi, Shigeki Tasaka, M. Miyasaka, Yasuhiro Kishimoto, Ko Abe, K. Nishijima, B. S. Yang, and Koichi Ichimura
- Subjects
Physics ,Scintillation ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Dark matter ,FOS: Physical sciences ,Astronomy and Astrophysics ,Inelastic scattering ,01 natural sciences ,Particle identification ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,WIMP ,Weakly interacting massive particles ,Excited state ,0103 physical sciences ,High Energy Physics::Experiment ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment ,010303 astronomy & astrophysics ,Event (particle physics) ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
A search for Weakly Interacting Massive Particles (WIMPs) was conducted with the single-phase liquid-xenon detector XMASS through inelastic scattering in which $^{129}$Xe nuclei were excited, using an exposure ($\rm 327\; kg \times 800.0 \; days$) 48 times larger than that of our previous study. The inelastic excitation sensitivity was improved by detailed evaluation of background, event classification based on scintillation timing that distinguished $\gamma$-rays and $\beta$-rays, and simultaneous fitting of the energy spectra of $\gamma$-like and $\beta$-like samples. No evidence of a WIMP signal was found. Thus, we set the upper limits of the inelastic channel cross section at 90\% confidence level, for example, $4.1\times 10^{-39} \;{\rm cm^2}$ for a $200\; {\rm GeV}/c^2$ WIMP. This result provides the most stringent limits on the SD WIMP-neutron interaction and is better by a factor of 7.7 at $200\;{\rm GeV}/c^2$ than the existing experimental limit., Comment: 8 pages, 10 figures
- Published
- 2019
15. Development of low radioactivity photomultiplier tubes for the XMASS-I detector
- Author
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Ko Abe, M. Kobayashi, N. Oka, Yong Hamb Kim, Hiroshi Ogawa, K. Martens, Hiroyuki Sekiya, Y. Fukuda, Yasuhiro Kishimoto, K. Kanzawa, Nam Young Kim, M. Miyasaka, T. Norita, K. Nishijima, Shigetaka Moriyama, Katsuki Hiraide, Shogo Nakamura, Y. Takeuchi, K.B. Lee, Yoshihiro Suzuki, Kentaro Miuchi, Koichi Ichimura, Lee Min-Kie, Kimiaki Masuda, G. Kanzaki, R. Fujita, Masayuki Nakahata, H. Takiya, Yoshitaka Itow, O. Takachio, Y. D. Kim, Masaki Yamashita, R. Kegasa, K. Kobayashi, Katsuhiko Sato, B. D. Xu, B. S. Yang, K. Hosokawa, Atsushi Takeda, Ken-Ichi Fushimi, and Shigeki Tasaka
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Nuclear and High Energy Physics ,Photomultiplier ,Physics - Instrumentation and Detectors ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,FOS: Physical sciences ,chemistry.chemical_element ,01 natural sciences ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,Optics ,Xenon ,0103 physical sciences ,Screening method ,010306 general physics ,Instrumentation ,Physics ,010308 nuclear & particles physics ,Hexagonal crystal system ,business.industry ,Detector ,Dynode ,Instrumentation and Detectors (physics.ins-det) ,chemistry ,Photonics ,business ,Kovar ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
XMASS-I is a single-phase liquid xenon detector whose purpose is direct detection of dark matter. To achieve the low background requirements necessary in the detector, a new model of photomultiplier tubes (PMTs), R10789, with a hexagonal window was developed based on the R8778 PMT used in the XMASS prototype detector. We screened the numerous component materials for their radioactivity. During development, the largest contributions to the reduction of radioactivity came from the stem and the dynode support. The glass stem was exchanged to the Kovar alloy one and the ceramic support were changed to the quartz one. R10789 is the first model of Hamamatsu Photonics K. K. that adopted these materials for low background purposes and provided a groundbreaking step for further reductions of radioactivity in PMTs. Measurements with germanium detectors showed 1.2$\pm$0.3 mBq/PMT of $^{226}$Ra, less than 0.78 mBq/PMT of $^{228}$Ra, 9.1$\pm$2.2 mBq/PMT of $^{40}$K, and 2.8$\pm$0.2 mBq/PMT of $^{60}$Co. In this paper, the radioactive details of the developed R10789 are described together with our screening methods and the components of the PMT., Comment: 7 pages, 3 figures
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- 2019
16. Search for dark matter in the form of hidden photons and axion-like particles in the XMASS detector
- Author
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Katsuki Hiraide, Y. D. Kim, Kentaro Miuchi, Shigeki Tasaka, K. Kobayashi, Hiroshi Ogawa, K. Nishijima, Shigetaka Moriyama, Y. Takeuchi, Takatoshi Suzuki, Masayuki Nakahata, K.B. Lee, Yong Hamb Kim, Nam Young Kim, B. S. Yang, M. Kobayashi, Yasuhiro Kishimoto, Masaki Yamashita, B. D. Xu, Kimiaki Masuda, Lee Min-Kie, Yoshitaka Itow, Atsushi Takeda, Hiroyuki Sekiya, Y. Fukuda, O. Takachio, K. Martens, G. Kanzaki, Ken-Ichi Fushimi, Yoshihiro Suzuki, Ko Abe, Koichi Ichimura, K. Kanzawa, M. Miyasaka, Katsuhiko Sato, N. Oka, and Shogo Nakamura
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Nuclear and High Energy Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Physics - Instrumentation and Detectors ,Cold dark matter ,Photon ,Physics::Instrumentation and Detectors ,media_common.quotation_subject ,Dark matter ,FOS: Physical sciences ,chemistry.chemical_element ,01 natural sciences ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,Xenon ,0103 physical sciences ,Axion-like particle ,010306 general physics ,Axion ,Low background ,media_common ,Boson ,Physics ,Range (particle radiation) ,010308 nuclear & particles physics ,Instrumentation and Detectors (physics.ins-det) ,lcsh:QC1-999 ,Universe ,chemistry ,Hidden photon ,Liquid xenon ,lcsh:Physics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
Hidden photons and axion-like particles are candidates for cold dark matter if they were produced non-thermally in the early universe. We conducted a search for both of these bosons using 800 live-days of data from the XMASS detector with 327 kg of liquid xenon in the fiducial volume. No significant signal was observed, and thus we set constraints on the $\alpha' / \alpha$ parameter related to kinetic mixing of hidden photons and the coupling constant $g_{Ae}$ of axion-like particles in the mass range from 40 to 120 keV/$c^2$, resulting in $\alpha' / \alpha < 6 \times 10^{-26}$ and $g_{Ae} < 4 \times 10^{-13}$. These limits are the most stringent derived from both direct and indirect searches to date., Comment: 18 pages, 5 figures
- Published
- 2018
17. Measurements of ν̅ μ and ν̅ μ + ν μ charged-current cross-sections without detected pions or protons on water and hydrocarbon at a mean anti-neutrino energy of 0.86 GeV
- Author
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M. Barbi, T. Vladisavljevic, A. Longhin, A. Shaykina, M. Lawe, Michelangelo Pari, A. Blanchet, Thorsten Lux, Y. Sonoda, L. Molina Bueno, T. Kikawa, S. Parsa, V. Q. Nguyen, H. W. Sobel, M. Gonin, J. Xia, A. T. Suzuki, A. Dergacheva, C. E. R. Naseby, J. F. Martin, N. Kukita, M. Licciardi, T. Feusels, Y. Tanihara, C. Alt, T. Nakadaira, Shuji Tanaka, R. Shah, J. Lagoda, R. J. Wilson, M. Pavin, S. J. Jenkins, J. R. Wilson, D. Fukuda, L. O'Sullivan, Jochen Steinmann, Xianguo Lu, M. R. Vagins, H. Kikutani, J. G. Walsh, A. Bubak, P. Jonsson, R. A. Owen, P. Novella, K. Iwamoto, K. Niewczas, André Rubbia, Jaroslaw Pasternak, Y. Yoshimoto, M. Batkiewicz-Kwasniak, M. Miura, Marco Laveder, A. Zykova, J. P. Coleman, T. Hayashino, Yuto Ashida, A. J. Finch, R. Fukuda, C. Wret, A. Knox, T. Arihara, T. Sekiguchi, R. Akutsu, J. Morrison, N. McCauley, M. Guigue, A. Pritchard, P. B. Jurj, A. A. Sztuc, J. L. Palomino, G. Zarnecki, Patrick Dunne, P. Paudyal, A. Blondel, T. Koga, B. A. Popov, T. Honjo, A. Rychter, P. Hamacher-Baumann, Oleg Mineev, C. Pistillo, M. Jakkapu, M. Buizza Avanzini, B. Jamieson, G. Christodoulou, K. Nakamura, T. A. Doyle, E. Reinherz-Aronis, Keigo Nakamura, Takaaki Kajita, E. Rondio, B. Quilain, C. J. Densham, K. Yasutome, K. Fusshoeller, Hiroyuki Sekiya, S. L. Cartwright, F. Shaker, W. Uno, C. M. Nantais, F. Nova, K. Porwit, P. F. Denner, R. Fujita, Y. Fukuda, Kendall Mahn, A. K. Ichikawa, V. Paolone, Akitaka Ariga, Ko Okumura, G. Pintaudi, S. Moriyama, Kate Scholberg, D. Cherdack, M. Ziembicki, S. Roth, J. Kameda, J. Zalipska, C. Vilela, S. Kuribayashi, E. S. Pinzon Guerra, Th. A. Mueller, B. Radics, M. Ikeda, A. Zalewska, Federico Sanchez, B. Bourguille, Yousuke Kataoka, Z. Vallari, Y. Takeuchi, K. Wood, R.P. Kurjata, L. F. Thompson, S. Valder, T. Ogawa, T. Golan, M. Hartz, E. D. Zimmerman, C. McGrew, Masayuki Nakahata, C. Pidcott, L. Koch, Y. Asada, A. Gorin, G. A. Fiorentini, A. Knight, A. Shvartsman, N. Teshima, C. Checchia, A. Bravar, Vladimir Volkov, Y. Uchida, Shigeki Aoki, Yuichi Oyama, A. Nakamura, S. Suvorov, R. P. Litchfield, Takatomi Yano, Y. Hayato, C. Andreopoulos, R. A. Wendell, S. Bolognesi, H. M. O'Keeffe, J. Holeczek, S. Hassani, G. Fiorillo, T. Radermacher, Thomas B. Campbell, Yuki Fujii, K. Nakayoshi, D. Bravo Berguño, E. Radicioni, T. Kobata, W. H. Toki, Hiromasa Tanaka, V. A. Matveev, M. B. Smy, T. Towstego, L. Maret, P. N. Ratoff, T. Kutter, Koji Yamamoto, M. McCarthy, M. Zito, Hidekazu Kakuno, Pablo Fernandez, M. O. Wascko, S. Mine, G. Yang, E. Mazzucato, K. Kowalik, Laura Gutermuth Anthony, M. Yu, D. L. Wark, F. Di Lodovico, Yutaka Nakajima, Jan Kisiel, T. Bonus, M. Friend, Teppei Katori, Yanbin Wang, M. Tada, D. J. Payne, K. Abe, T. Okusawa, Jungsang Kim, S. Y. Suzuki, N. Izumi, D. Vargas, J. Dumarchez, N. Chikuma, Vincenzo Berardi, D. Barrow, Etam Noah, C. Bronner, Steven C. Johnson, S. Nakayama, F. J. P. Soler, L. L. Kormos, W. Shorrock, Masaki Ishitsuka, Yoshihiro Suzuki, M. Kuze, T. Tsukamoto, K. Skwarczynski, L. Labarga, A. Eguchi, K. Sakashita, S. M. Oser, L. Berns, S. Yen, M. Hogan, T. Kobayashi, N. C. Hastings, M. Antonova, R. Okada, T. Odagawa, Yoshikazu Yamada, A. N. Khotjantsev, Alan Cosimo Ruggeri, J. Schwehr, D. Karlen, T. Yoshida, Y. Seiya, A. Minamino, Hidetoshi Kubo, A. D. Marino, Hyun-Chul Kim, A. Izmaylov, L. Pickering, Y. Nishimura, S. Manly, S. Ban, S. Bienstock, K. M. Tsui, K. S. McFarland, F. Bench, A. C. Weber, Y. Katayama, G. Vasseur, C. Jesús-Valls, C. Ruggles, G. Santucci, O. Drapier, D. A. Harris, S. Emery-Schrenk, H. K. Tanaka, T. Wachala, T. Ishida, S. P. Kasetti, N. Akhlaq, M. M. Khabibullin, S. L. Liu, M. Posiadala-Zezula, M. G. Catanesi, M. Malek, L. Magaletti, C. Giganti, N. Dokania, S. Berkman, Roberto Spina, A. C. Kaboth, A. Cervera, G. Collazuol, Mark Scott, M. Kabirnezhad, K. Mavrokoridis, J. A. Nowak, A. Chappell, Lars Eklund, T. S. Nonnenmacher, C. Barry, S. Murphy, C. Riccio, C. Mauger, T. Dealtry, E. T. Atkin, M. Cicerchia, Alexei Yu. Smirnov, Yuta Kato, K. Nishikawa, M. Lamoureux, L. N. Machado, J. T. Haigh, S. Zsoldos, V. Palladino, S. B. Boyd, L. Marti-Magro, K. Zaremba, Jan T. Sobczyk, Stephanie Bron, Atsushi Takeda, J. McElwee, D. Sgalaberna, Ahmed Ali, C. Francois, Y. Awataguchi, Xiao-yan Li, W. G. S. Vinning, C. Wilkinson, T. V. Ngoc, C. Yanagisawa, Gareth J. Barker, Yuuki Nakano, D. Coplowe, T. Ishii, A. Hiramoto, T. Hasegawa, Takahiko Matsubara, S. V. Cao, C. Touramanis, M. J. Wilking, M. Jiang, Antonio Ereditato, N. Yershov, T. Maruyama, K. Gameil, J. C. Nugent, G.D. Barr, S. King, F. Iacob, M. Mezzetto, D. R. Hadley, Y. Nagai, W. C. Parker, M. Tani, E. Kearns, G. C. Penn, Masashi Yokoyama, M. Tzanov, C. J. Metelko, Yu.A. Kudenko, A. Dabrowska, K. Matsushita, D. Brailsford, N. T. Hong Van, J. Walker, A. Mefodiev, S. Dolan, T. Lindner, A. Cudd, S. R. Dennis, Tsuyoshi Nakaya, C. M. Schloesser, C. K. Jung, Masato Shiozawa, L. Ludovici, A. Kostin, S. Bhadra, L. Cook, A. Beloshapkin, G. De Rosa, J. Calcutt, A. Shaikhiev, A. Konaka, L. Munteanu, M. Tajima, and Yusuke Koshio
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chemistry.chemical_classification ,Physics ,Particle physics ,Muon ,Proton ,010308 nuclear & particles physics ,General Physics and Astronomy ,01 natural sciences ,Hydrocarbon ,Pion ,chemistry ,0103 physical sciences ,010306 general physics ,Nucleon ,Energy (signal processing) ,Charged current ,Bar (unit) - Abstract
We report measurements of the flux-integrated ν̅μ and ν̅μ + νμ charged-current cross-sections on water and hydrocarbon targets using the T2K anti-neutrino beam with a mean beam energy of 0.86 GeV. The signal is defined as the (anti-)neutrino charged-current interaction with one induced $\mu^\pm$ and no detected charged pion or proton. These measurements are performed using a new WAGASCI module recently added to the T2K setup in combination with the INGRID Proton Module. The phase space of muons is restricted to the high-detection efficiency region, $p_{\mu}>400~{\rm MeV}/c$ and $\theta_{\mu}200~{\rm MeV}/c$, $\theta_{\pi}600~{\rm MeV}/c$, $\theta_{\rm p}
- Published
- 2021
18. Search for tens of MeV neutrinos associated with gamma-ray bursts in Super-Kamiokande
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P. Fernandez, Y. Nishimura, M. Inomoto, J. Bian, P. de Perio, G. Pronost, L. Wan, M. Lamoureux, Shintaro Ito, S. Zsoldos, Y. Takeuchi, K. Martens, J. Xia, Y. Sonoda, O. Drapier, Takatomi Yano, S. El Hedri, T. Shiozawa, Ahmed Ali, Ll. Marti, K. Nakamura, C. Xu, Hiroaki Menjo, C. Bronner, A. Konaka, T. Sekiguchi, K. S. Ganezer, M. Hartz, A. Giampaolo, B. Jamieson, N. F. Calabria, J. G. Learned, Takaaki Kajita, K. Yasutome, S. Nakayama, A. Takenaka, M. Harada, Vincenzo Berardi, William R. Kropp, S. Chen, R. G. Park, L. Ludovici, Kimihiro Okumura, Yasuhiro Takemoto, K. M. Tsui, A. Takeda, Hiromasa Tanaka, C. W. Walter, H. Okazawa, K. Okamoto, Y. Ashida, J. McElwee, S. Izumiyama, D. Barrow, Y. Fukuda, M. Ikeda, R. P. Litchfield, T. Okada, Intae Yu, N. Ogawa, Kate Scholberg, H. Miyabe, G. D. Megias, C. Simpson, Makoto Sakuda, L. Bernard, S. Samani, M. G. Catanesi, J. Y. Yang, Masaki Ishitsuka, M. Thiesse, F. d. M. Blaszczyk, Jl Stone, Yoshitaka Kuno, G. Pintaudi, K. Ohta, Hiroyuki Sekiya, F. Nova, Y. Kato, P. Weatherly, K. Abe, S. Han, T. Sugimoto, Hirokazu Ishino, Masayuki Nakahata, N. McCauley, C. M. Nantais, B. Zaldivar, T. Nakadaira, S. Sakai, E. Kearns, A. Goldsack, Michael B. Smy, M. Jakkapu, R. A. Wendell, Y. Uchida, M. Posiadala-Zezula, Y. Oyama, B. Bodur, C. Vilela, G. De Rosa, K. Sato, G. Collazuol, Luis Labarga, J. Kameda, J. Feng, D. Fukuda, T. Niwa, P. Mijakowski, P. Paganini, B. D. Xu, N. J. Griskevich, P. Mehta, T. Horai, C. K. Jung, Lester D.R. Thompson, Yusuke Koshio, D. Bravo-Berguño, S. Matsuno, T. Tsukamoto, K. Hagiwara, S. Hirota, M. Koshiba, Y. Nakajima, G.D. Barr, Yuuki Nakano, T. Mochizuki, Stephen J. Jenkins, I. T. Lim, T. Ishida, Y. Isobe, L. N. Machado, T. Boschi, John Walker, Th. A. Mueller, Hiroshi Ito, B. W. Pointon, M. Taani, R. Akutsu, A. A. Sztuc, Makoto Hasegawa, L. H. V. Anthony, Tatsuya Kikawa, Volodymyr Takhistov, Yousuke Kataoka, N. W. Prouse, S. V. Cao, A. Pritchard, M. Tsukada, M. Gonin, Yoshihiro Suzuki, Y. Nagao, A. Minamino, M. Shinoki, M. Malek, J. Y. Kim, J. L. Raaf, S. Yamamoto, T. Nakamura, S. Locke, M. Jiang, A. Coffani, Yasuhiro Kishimoto, O. Stone, Takashi Kobayashi, T. Towstego, T. Hasegawa, S. Mine, Takahiko Matsubara, K. Frankiewicz, N. Piplani, A. Orii, Mark R. Vagins, S. B. Kim, A. K. Ichikawa, K. E. Nakamura, S. Molina Sedgwick, B. Richards, Ken Sakashita, W. Ma, R. Matsumoto, B. Quilain, J. F. Martin, M. Friend, Masato Shiozawa, Y. Choi, L. Cook, A. Suzuki, Masashi Yokoyama, T. Ishizuka, Tsuyoshi Nakaya, J. S. Jang, Masahiro Kuze, R. Sasaki, Henry W. Sobel, Kyoshi Nishijima, Natalv Ospina, Shigetaka Moriyama, H. A. Tanaka, S. Imaizumi, K. Iwamoto, T. Tashiro, Manabu Tanaka, Yoshinari Hayato, C. Yanagisawa, T. Wester, Yoshitaka Itow, M. Miura, M. J. Wilking, Takashi Yoshida, F. Iacob, E. Radicioni, John Hill, D. L. Wark, Y. Takahira, R. Wang, M. Mori, F. Di Lodovico, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Super-Kamiokande, and Super-Kamiokande Collaboration
- Subjects
Astrophysics::High Energy Astrophysical Phenomena ,General Physics and Astronomy ,FOS: Physical sciences ,Astrophysics ,KAMIOKANDE ,gamma ray: burst ,01 natural sciences ,Fluence ,Coincidence ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,Positron ,F03 Ultra-high energy phenomena of cosmic rays ,neutrino: energy ,0103 physical sciences ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,010303 astronomy & astrophysics ,Physics ,High Energy Astrophysical Phenomena (astro-ph.HE) ,010308 nuclear & particles physics ,background ,High Energy Physics::Phenomenology ,F22 Neutrinos from supernova remnant and other astronomical objects ,network ,positron ,High Energy Physics::Experiment ,C43 Underground experiments ,Underground experiments Ultra-high energy phenomena of cosmic rays Neutrinos from supernova remnant and other astronomical objects ,Neutrino ,Astrophysics - High Energy Astrophysical Phenomena ,Super-Kamiokande ,Gamma-ray burst ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Energy (signal processing) ,Bar (unit) - Abstract
A search for neutrinos produced in coincidence with Gamma-Ray Bursts(GRB) was conducted with the Super-Kamiokande (SK) detector. Between December 2008 and March 2017, the Gamma-ray Coordinates Network recorded 2208 GRBs that occurred during normal SK operation. Several time windows around each GRB were used to search for coincident neutrino events. No statistically significant signal in excess of the estimated backgrounds was detected. The $\bar\nu_e$ fluence in the range from 8 MeV to 100 MeV in positron total energy for $\bar\nu_e+p\rightarrow e^{+}+n$ was found to be less than $\rm 5.07\times10^5$ cm$^{-2}$ per GRB in 90\% C.L. Upper bounds on the fluence as a function of neutrino energy were also obtained., Comment: 29 pages, 16 figures, 5 tables, accepted by PTEP
- Published
- 2021
- Full Text
- View/download PDF
19. Follow-up of GWTC-2 gravitational wave events with neutrinos from the Super-Kamiokande detector
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Vincenzo Berardi, A. A. Sztuc, M. Thiesse, K. Iwamoto, P. Mehta, M. Koshiba, S. J. Jenkins, M. Taani, R. G. Park, H. Okazawa, Y. Takeuchi, Patrick de Perio, Kimihiro Okumura, K. Martens, S. Han, S. Cao, Thomas A. Mueller, E. Kearns, M. R. Vagins, David Hadley, Henry W. Sobel, Yoshinari Hayato, K. Yasutome, S. Mine, K. M. Tsui, Masashi Yokoyama, T. Towstego, C. Bronner, J. Y. Yang, Yasuhiro Takemoto, O. Drapier, J. McElwee, Gianfranca De Rosa, Makoto Miura, E. Radicioni, M. B. Smy, J. S. Jang, Shuhei Watanabe, A. Konaka, Marco Mattiazzi, David Wark, B. Zaldivar, J. Migenda, M. Lamoureux, T. Ishizuka, M. Friend, S. Zsoldos, B. Bodur, H. A. Tanaka, T. Matsubara, N. W. Prouse, Katsuki Hiraide, Tsuyoshi Nakaya, C. W. Walter, Masaki Ishitsuka, S. Locke, S. Miki, Hirokazu Ishino, J. Feng, Sonia El Hedri, Masahiro Kuze, Yusuke Koshio, John Walker, D. Barrow, S. Mohan Lakshmi, J. L. Raaf, M. Mori, Hiroaki Menjo, Y. Sonoda, F. Nova, S. Sano, R. Sasaki, Marcus O'Flaherty, Takaaki Kajita, Yoshitaka Itow, G. Collazuol, M. Jakkapu, Natalv Ospina, Mark Scott, Y. Nishimura, Hiroyuki Sekiya, Soo-Bong Kim, B. Quilain, James Hill, G. Pronost, M. Inomoto, Y. Fukuda, L. Wan, T. Yano, John Fraser Martin, I. T. Lim, T. Boschi, Y. Maekawa, K. Nakamura, M. J. Wilking, J. Bian, K. Abe, L. Bernard, Y. Nagao, A. Minamino, Tatsushi Kinoshita, S. Izumiyama, C. K. Jung, Hiroshi Ito, N. Jeff Griskevich, P. Paganini, Y. Kanemura, M. Ikeda, A. Giampaolo, Masato Shiozawa, L. Ludovici, B. D. Xu, Yoshihiro Suzuki, S. Moriyama, F. Iacob, M. Shinoki, M. Gonin, J. Xia, L. H. V. Anthony, Masayuki Nakahata, J. G. Learned, R. Matsumoto, Takuto Suganuma, Y. Uchida, A. Ali, Kate Scholberg, Pablo Fernandez, N. McCauley, L. N. Machado, H. K. Tanaka, S. Samani, M. Malek, M. G. Catanesi, Junjie Jiang, William R. Kropp, T. Sekiguchi, M. Harada, S. Chen, Kenzo Nakamura, H. Ozaki, S. Yamamoto, Yuuki Nakano, A. T. Suzuki, K. Okamoto, Hussain Kitagawa, B. Jamieson, G. D. Megias, B. W. Pointon, A. K. Ichikawa, T. Nakadaira, J. Kameda, Lester D.R. Thompson, Yuichi Oyama, V. Takhistov, P. Mijakowski, S. Sakai, T. Hasegawa, Atsushi Takeda, G. Pintaudi, Yasuhiro Nakajima, N. F. Calabria, Joanna Zalipska, K. Sakashita, T. Nakamura, N. Piplani, Intae Yu, N. Ogawa, M. Posiadala-Zezula, C. Yanagisawa, J. Y. Kim, A. Goldsack, S. Nakayama, R. A. Wendell, Y. Kataoka, A. Coffani, O. Stone, Takashi Kobayashi, D. Martin, K. Sato, G.D. Barr, Tatsuya Kikawa, L. Marti, M. Hartz, T. Tashiro, K. Nishijima, T. Wester, Justyna Lagoda, Jingyuan Gao, W. Ma, A. Takenaka, T. Tsukamoto, L. Labarga, T. Ishida, B. Richards, Shintaro Ito, Y. Kotsar, C. Vilela, FD Lodovico, L. Cook, R. Akutsu, Lamoureux, Mathieu, Abe, Ko, Bronner, Christophe, Hayato, Yoshinari, Hiraide, Katsuki, Ikeda, Motoyasu, Kameda, Jun, Kanemura, Yuki, Kataoka, Yousuku, Miki, Shintaro, Miura, Makoto, Moriyama, Shigetaka, Nagao, Yoshiki, Nakahata, Masayuki, Nakayama, Shoei, Okamoto, Kohei, Pronost, Guillaume, Sekiya, Hiroyuki, Shiozawa, Masato, Sonoda, Yutaro, Suzuki, Yoichiro, Takeda, Atsushi, Takemoto, Yasuhiro, Takenaka, Akira, Tanaka, Hidekazu, Watanabe, Shuhei, Yano, Takatomi, Han, Seungho, Kajita, Takaaki, Okumura, Kimihiro, Tashiro, Takuya, Xia, Junjie, Megias, Guillermo, Labarga, Lui, Marti, Llui, Zaldivar, Bryan, Pointon, Barry W., Kearns, Edward, Raaf, Jennifer L., Wan, Linyan, Wester, Thoma, Bian, Jianming, Griskevich, N. Jeff, Kropp, William R., Locke, Scott, Mine, Shunichi, Smy, Michael, Sobel, Henry W., Takhistov, Volodymyr, Hill, Jame, Kim, Jae Yool, Lim, In Taek, Park, Ryeong Gyoon, Bodur, Baran, Scholberg, Kate, Walter, Chri, Bernard, Laura, Coffani, Alice, Drapier, Olivier, El Hedri, Sonia, Giampaolo, Alberto, Gonin, Michel, Mueller, Thomas A., Paganini, Pascal, Quilain, Benjamin, Ishizuka, Takeharu, Nakamura, Taku, Jang, Jae Seung, Learned, John G., Cao, Son, Anthony, Lauren H. V., Martin, Daniel, Scott, Mark, Sztuc, Artur A., Uchida, Yoshi, Berardi, Vincenzo, Catanesi, Maria Gabriella, Radicioni, Emilio, Calabria, Nicola F., Machado, Lucas N., De Rosa, Gianfranca, Collazuol, Gianmaria, Iacob, Fabio, Mattiazzi, Marco, Ospina, Natalv, Ludovici, Lucio, Maekawa, Yuto, Nishimura, Yasuhiro, Friend, Megan, Hasegawa, Takuya, Ishida, Taku, Kobayashi, Takashi, Jakkapu, Mahesh, Matsubara, Tsunayuki, Nakadaira, Takeshi, Nakamura, Kenzo, Oyama, Yuichi, Sakashita, Ken, Sekiguchi, Tetsuro, Tsukamoto, Toshifumi, Boschi, Tommaso, Di Lodovico, Francesca, Gao, Jingyuan, Migenda, Jost, Taani, Mahdi, Zsoldos, Stephane, Nakano, Yuuki, Ozaki, Hironori, Suzuki, Atsumu, Takeuchi, Yasuo, Yamamoto, Shotaro, Kotsar, Yurii, Ali, Ajmi, Feng, Jiahui, Kikawa, Tatsuya, Mori, Masamitsu, Nakaya, Tsuyoshi, Wendell, Roger, Yasutome, Kenji, Fernández, Pablo, Mccauley, Neil, Mehta, Pruthvi, Tsui, Ka Ming, Fukuda, Yoshiyuki, Itow, Yoshitaka, Menjo, Hiroaki, Sato, Kazufumi, Lagoda, Justyna, Lakshmi, S. Mohan, Mijakowski, Piotr, Zalipska, Joanna, Jiang, Junjie, Jung, Chang K., Vilela, Cristovao, Wilking, Michael, Yanagisawa, Chiaki, Harada, Masayuki, Ishino, Hirokazu, Ito, Shintaro, Kitagawa, Hussain, Koshio, Yusuke, Ma, Wenjie, Piplani, Nishtha, Sakai, Seiya, Barr, Gile, Barrow, Danial, Cook, Laurence, Goldsack, Alexander, Samani, Soniya, Wark, David, Nova, Federico, Yang, Jeong Yeol, Jenkins, Sam J., Malek, Matthew, Mcelwee, Jordan, Stone, Owen, Thiesse, Matthew D., Thompson, Lee F., Okazawa, Hiroko, Kim, Soo Bong, Yu, Intae, Ichikawa, Atsuko, Nakamura, Kiseki, Nishijima, Kyoshi, Koshiba, Masatoshi, Iwamoto, Konosuke, Nakajima, Yasuhiro, Ogawa, Natsumi, Yokoyama, Masashi, Martens, Kai, Vagins, Mark, Kuze, Masahiro, Izumiyama, Shota, Inomoto, Michitaka, Ishitsuka, Masaki, Ito, Hiroshi, Kinoshita, Tatsushi, Matsumoto, Ryo, Shinoki, Masataka, Suganuma, Takuto, Martin, John Fraser, Tanaka, Hirohisa, Towstego, Trevor, Akutsu, Ryosuke, de Perio, Patrick, Hartz, Mark, Konaka, Akira, Prouse, Nick, Chen, Shaomin, Xu, Benda D., Posiadala-Zezula, Magdalena, Hadley, David, O'Flaherty, Marcu, Richards, Benjamin, Jamieson, Blair, Walker, John, Minamino, Akihiro, Pintaudi, Ggiorgio, Sano, Shiochi, and Sasaki, Ryota
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Physics ,Particle physics ,Gravitational wave ,Cherenkov detector ,Astrophysics::High Energy Astrophysical Phenomena ,High Energy Physics::Phenomenology ,Detector ,Flux ,law.invention ,law ,Time windows ,High Energy Physics::Experiment ,Total energy ,Neutrino ,Super-Kamiokande - Abstract
Super-Kamiokande (SK) is a 50-kt water Cherenkov detector, instrumented with $\sim 13$k photo-multipliers and running since 1996. It is sensitive to neutrinos with energies ranging from 4.5 MeV to several TeV. A new framework has been developed for the follow-up of gravitational wave (GW) alerts issued by the LIGO-Virgo collaboration (LVC). Neutrinos are searched for, using a 1000-second time window centered on the alert time and in both SK low-energy and high-energy samples. Such observation can then be used to constrain the neutrino emission from the GW source. The significance of potential signals has been obtained by comparing neutrino direction with the localization of the GW. The computation of limits on incoming neutrino flux and on the total energy emitted in neutrinos by the source has been performed for the different neutrino flavors. The results using the LVC GWTC-2 catalog (covering O3a period) are presented, as well as the outlooks for the future real-time public release of follow-ups for the O4 period (in 2022) and beyond.
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- 2021
20. Search for proton decay via p→e+π0 and p→μ+π0 with an enlarged fiducial volume in Super-Kamiokande I-IV
- Author
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J. S. Jang, B. Bodur, Yuji Kishimoto, L. H. V. Anthony, Rongkun Wang, J. L. Raaf, L. Labarga, K. Nakamura, T. Niwa, T. Kobayashi, F. d. M. Blaszczyk, M. Jakkapu, M. Hartz, Y. Nishimura, P. Weatherly, S. Moriyama, Y. Isobe, T. Boschi, Hiroshi Ito, B. Richards, G. Santucci, Masayuki Nakahata, N. Ospina, Y. Uchida, V. Takhistov, C. K. Jung, M. Mori, M. Taani, Y. Sonoda, M. Ikeda, M. Koshiba, P. de Perio, T. Yano, A. T. Suzuki, K. Okamoto, J. F. Martin, Masato Shiozawa, Y. Choi, Yoshitaka Itow, H. Okazawa, G. Pintaudi, E. Radicioni, L. Ludovici, W. R. Kropp, K. Sakashita, Yutaka Nakajima, C. Xu, Hiroaki Menjo, P. Paganini, M. Miura, T. Nakadaira, G. Pronost, F. Iacob, R. G. Park, B. D. Xu, N. F. Calabria, O. Drapier, Makoto Sakuda, Ke. Nakamura, M. Jiang, A. Coffani, M. Posiadala-Zezula, T. Horai, Ko Okumura, H. W. Sobel, S. Matsuno, A. Giampaolo, S. Molina Sedgwick, Yuuki Nakano, T. Mochizuki, T. Tashiro, T. Towstego, S. Imaizumi, K. Hagiwara, H.A. Tanaka, S. Cao, S. Sakai, B. W. Pointon, F. Nova, R. Sasaki, R. Matsumoto, Intae Yu, P. Mehta, Y. Kataoka, D. Fukuda, C. Bronner, M. G. Catanesi, S. Han, Pablo Fernandez, H. Miyabe, M. J. Wilking, Yuichi Oyama, R. P. Litchfield, C. M. Nantais, D. Bravo-Berguño, B. Quilain, J. G. Learned, K. Yasutome, S. Zsoldos, Y. Kuno, Ke. Abe, K. Nishijima, S. Locke, Atsushi Takeda, J. C. Hill, K. Ohta, T. Wester, E. Kearns, Vincenzo Berardi, N. Piplani, G. De Rosa, Masashi Yokoyama, J. L. Stone, David A. Wark, J. Y. Yang, M. Tsukada, Y. Takahira, Masaki Ishitsuka, M. Thiesse, K. Iwamoto, G.D. Barr, A. Konaka, S. J. Jenkins, M. R. Vagins, J. Walker, N. J. Griskevich, A. Ali, Yusuke Koshio, Y. Takemoto, A. Pritchard, W. Y. Ma, D. Barrow, L. F. Thompson, T. Ishizuka, Makoto Hasegawa, Y. Nagao, J. McElwee, A. Minamino, Tsuyoshi Nakaya, B. Jamieson, M. Shinoki, K. Frankiewicz, N. McCauley, S. B. Kim, I. T. Lim, S. Yamamoto, T. Matsubara, J. Y. Kim, A. Orii, S. El Hedri, J. Feng, L. Cook, Y. Takeuchi, T. Kajita, J. Bian, H. K. Tanaka, Seiko Hirota, T. Kikawa, M. Gonin, J. Xia, M. Friend, Masaaki Tanaka, N. W. Prouse, C. W. Walter, T. Sugimoto, Hiroyuki Sekiya, Y. Fukuda, L. Wan, R. Akutsu, Y. Hayato, T. Sekiguchi, Yasunari Suzuki, T. Shiozawa, C. Vilela, Ll. Marti, T. Yoshida, Song Chen, K. S. Ganezer, Yuto Ashida, T. Tsukamoto, T. Okada, T. Nakamura, N. Ogawa, T. Ishida, C. Yanagisawa, A. Goldsack, S. Nakayama, R. A. Wendell, A. Takenaka, K. Sato, A. K. Ichikawa, J. Kameda, Th. A. Mueller, Shintaro Ito, P. Mijakowski, Kalen Martens, Kate Scholberg, S. Mine, K. M. Tsui, Takehisa Hasegawa, M. Lamoureux, Hirokazu Ishino, Chris Simpson, G. Collazuol, F. Di Lodovico, M. Kuze, M. Inomoto, A. A. Sztuc, M. B. Smy, B. Zaldivar, Yuta Kato, L. N. Machado, and M. Harada
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Physics ,010308 nuclear & particles physics ,Proton decay ,Detector ,01 natural sciences ,Lower limit ,Nuclear physics ,Volume (thermodynamics) ,0103 physical sciences ,Pi ,Atmospheric neutrino ,010306 general physics ,Fiducial marker ,Super-Kamiokande - Abstract
We have searched for proton decay via p→e+π0 and p→μ+π0 modes with the enlarged fiducial volume data of Super-Kamiokande from April 1996 to May 2018, which corresponds to 450 kton·years exposure. We have accumulated about 25% more livetime and enlarged the fiducial volume of the Super-Kamiokande detector from 22.5 kton to 27.2 kton for this analysis, so that 144 kton·years of data, including 78 kton·years of additional fiducial volume data, has been newly analyzed. No candidates have been found for p→e+π0 and one candidate remains for p→μ+π0 in the conventional 22.5 kton fiducial volume and it is consistent with the atmospheric neutrino background prediction. We set lower limits on the partial lifetime for each of these modes: τ/B(p→e+π0)>2.4×1034 years and τ/B(p→μ+π0)>1.6×1034 years at 90% confidence level.
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- 2020
21. Improved method for measuring low-concentration radium and its application to the Super-Kamiokande Gadolinium project
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Y. Takaku, Ko Abe, Masayuki Harada, Hiroyuki Sekiya, M. Ikeda, Hiroshi Ito, Yutaka Nakajima, Yasuhiro Kishimoto, Koichi Ichimura, T. Okada, and Shintaro Ito
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Physics ,Physics - Instrumentation and Detectors ,010308 nuclear & particles physics ,Gadolinium ,Radiochemistry ,Extraction (chemistry) ,FOS: Physical sciences ,General Physics and Astronomy ,chemistry.chemical_element ,Improved method ,Instrumentation and Detectors (physics.ins-det) ,010403 inorganic & nuclear chemistry ,01 natural sciences ,High Energy Physics - Experiment ,0104 chemical sciences ,Semiconductor detector ,Radium ,High Energy Physics - Experiment (hep-ex) ,chemistry ,0103 physical sciences ,Astrophysics - Instrumentation and Methods for Astrophysics ,Super-Kamiokande ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,Sensitivity (electronics) ,Volume concentration - Abstract
Chemical extraction using a molecular recognition resin named "Empore Radium Rad Disk" was developed to improve sensitivity for the low concentration of radium (Ra). Compared with the previous method, the extraction process speed was improved by a factor of three and the recovery rate for $^{226}$Ra was also improved from 81$\pm$4% to $>$99.9%. The sensitivity on the 10$^{-1}$ mBq level was achieved using a high purity germanium detector. This improved method was applied to determine $^{226}$Ra in Gd$_2$(SO$_4$)$_3{\cdot}$8H$_2$O which will be used in the Super-Kamiokande Gadolinium project. The improvement and measurement results are reported in this paper., 8 pages, 3 figures
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- 2020
22. First measurement of the charged current ν¯μ double differential cross section on a water target without pions in the final state
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J. R. Wilson, Jochen Steinmann, T. Koga, D. Cherdack, S. Valder, C. McGrew, Y. Hayato, C. Andreopoulos, A. Longhin, A. Shaykina, T. Vladisavljevic, Yoshikazu Yamada, Thorsten Lux, M. Gonin, L. Molina Bueno, F. Bench, W. G. S. Vinning, E. Kearns, A. T. Suzuki, M. Pavin, S. J. Jenkins, T. V. Ngoc, A. Knox, J. F. Martin, C. Alt, T. Sekiguchi, T. Nakadaira, Hiroyuki Sekiya, F. Nova, T. Tsukamoto, Masashi Yokoyama, Yasunari Suzuki, Keigo Nakamura, R. Fujita, Y. Fukuda, Kendall Mahn, N. T. Hong Van, Hyun-Chul Kim, G. Christodoulou, J. Walker, Y. Takeuchi, Xianguo Lu, A. Mefodiev, K. Niewczas, L. H. V. Anthony, André Rubbia, S. Moriyama, Masayuki Nakahata, C. Pidcott, T. Ishida, Tsuyoshi Nakaya, J. L. Palomino, Y. Uchida, C. K. Jung, A. Cervera, L. Maret, M. Kabirnezhad, T. S. Nonnenmacher, Masato Shiozawa, C. Barry, S. Murphy, L. Ludovici, P. N. Ratoff, T. Kutter, T. Golan, A. Shvartsman, K. Zaremba, Yuki Fujii, S. Bhadra, L. Cook, R. Akutsu, M. Lamoureux, M. Friend, Teppei Katori, Pablo Fernandez, K. Kowalik, N. Chikuma, D. Vargas, C. Pistillo, Atsushi Takeda, J. Dumarchez, J. Schwehr, D. Brailsford, E. Reinherz-Aronis, G. Fiorillo, S. Bolognesi, B. Quilain, V. Palladino, M. M. Khabibullin, Yuichi Oyama, A. Shaikhiev, Alessandro Ruggeri, R.P. Kurjata, O. Drapier, Y. Nakajima, M. McCarthy, S. R. Dennis, S. Suvorov, R. P. Litchfield, C. M. Schloesser, S. Nakayama, J. T. Haigh, F. Di Lodovico, C. Wilkinson, M. Tada, D. J. Payne, Koji Yamamoto, M. Kuze, M. Mezzetto, N. C. Hastings, A. Zykova, K. Sakashita, S. M. Oser, L. Berns, A. Nakamura, L. Pickering, W. C. Parker, D. Coplowe, Yanbin Wang, Y. Nishimura, S. Manly, C. Riccio, K. Abe, Asher Kaboth, Y. Seiya, L. Magaletti, C. Giganti, Jan Kisiel, M. Tzanov, T. Okusawa, T. Kobayashi, J. A. Nowak, C. Yanagisawa, Jungsang Kim, S. Y. Suzuki, A. Chappell, Lars Eklund, Yuta Kato, C. J. Metelko, K. Matsushita, T. Hayashino, R. Fukuda, S. Berkman, M. Zito, Gareth J. Barker, A. Beloshapkin, E. T. Atkin, S. B. Boyd, T. Wachala, Artur F. Izmaylov, G. De Rosa, S. Ban, J. Calcutt, C. Vilela, T. Ishii, N. Dokania, G. A. Fiorentini, A. Konaka, L. Munteanu, Ahmed Ali, W. H. Toki, M. B. Smy, Xiao-yan Li, E. Mazzucato, Yusuke Koshio, F. Shaker, D. Karlen, S. L. Liu, E. Rondio, N. McCauley, C. M. Nantais, J. Morrison, A. Pritchard, K. Porwit, G. Zarnecki, C. Checchia, M. Buizza Avanzini, Vladimir Volkov, Lester D.R. Thompson, B. Jamieson, Shuji Tanaka, J. Holeczek, T. Radermacher, Thomas B. Campbell, K. Nakayoshi, M. Hogan, Yu. Kudenko, A. A. Sztuc, C. Densham, S. Zsoldos, Patrick Dunne, M. Vagins, M. Barbi, A. N. Khotjantsev, P. F. Denner, K. M. Tsui, N. Kukita, M. Licciardi, M. Lawe, H. W. Sobel, T. Feusels, T. Matsubara, K. Iwamoto, M. G. Catanesi, Marco Laveder, J. P. Coleman, A. Gorin, P. Hamacher-Baumann, Takaaki Kajita, K. Yasutome, A. Zalewska, Federico Sanchez, A. Bravar, Vincenzo Berardi, F. J. P. Soler, S. Bienstock, G. Vasseur, V. Paolone, Z. Vallari, K. Wood, E. D. Zimmerman, R. A. Wendell, T. Maruyama, G.D. Barr, S. V. Cao, M. J. Wilking, C. Touramanis, M. Jiang, Antonio Ereditato, N. Yershov, K. Gameil, A. Hiramoto, T. Hasegawa, A. Minamino, C. Jesús-Valls, G. C. Penn, T. Dealtry, K. Mavrokoridis, A. Dabrowska, M. Malek, A. J. Finch, J. Lagoda, H. A. Tanaka, R. J. Wilson, Akitaka Ariga, B. Bourguille, S. Dolan, T. Lindner, Shigeki Aoki, A. Cudd, M. Guigue, V. Matveev, J. C. Nugent, S. King, Y. Awataguchi, P. Paudyal, B. Radics, Alexei Yu. Smirnov, Hidekazu Kakuno, S. Mine, G. Yang, A. K. Ichikawa, K. Nishikawa, S. L. Cartwright, F. Iacob, Jan T. Sobczyk, M. Ziembicki, M. Ikeda, Kimihiro Okumura, S. Roth, J. Kameda, K. Nakamura, J. Zalipska, Hidetoshi Kubo, D. R. Hadley, C. Francois, A. C. Weber, Y. Nagai, Yousuke Kataoka, E. S. Pinzon Guerra, Th. A. Mueller, D. Fukuda, O. V. Mineev, M. Posiadala-Zezula, A. Knight, R. Shah, G. Collazuol, Mark Scott, J. G. Walsh, L. O'Sullivan, R. A. Owen, P. Novella, M. Batkiewicz-Kwasniak, H. M. O'Keeffe, M. Miura, C. Wret, L. Koch, B. A. Popov, L. L. Kormos, Masaki Ishitsuka, M. O. Wascko, M. Yu, C. Bronner, Kate Scholberg, T. Yoshida, Steven C. Johnson, S. Yen, K. S. McFarland, M. Antonova, M. Hartz, H. K. Tanaka, S. Emery-Schrenk, Yuto Ashida, D. Sgalaberna, A. Blondel, A. Rychter, W. Uno, E. Radicioni, D. L. Wark, W. Shorrock, T. Yano, A. D. Marino, Y. Sonoda, P. Jonsson, and L. Labarga
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Physics ,Scattering cross-section ,010308 nuclear & particles physics ,0103 physical sciences ,media_common.cataloged_instance ,Library science ,Christian ministry ,Early career ,European union ,010306 general physics ,01 natural sciences ,media_common - Abstract
We thank the J-PARC staff for superb accelerator performance. We thank the CERN NA61/SHINE Collaboration for providing valuable particle production data. We acknowledge the support of MEXT, Japan; NSERC (Grant No. SAPPJ-2014-00031), the NRC and CFI, Canada; the CEA and CNRS/IN2P3, France; the DFG, Germany; the INFN, Italy; the National Science Centre and Ministry of Science and Higher Education, Poland; the RSF (Grant No. 19-12-00325) and the Ministry of Science and Higher Education, Russia; MINECO and ERDF funds, Spain; the SNSF and SERI, Switzerland; the STFC, UK; and the DOE, USA. We also thank CERN for the UA1/NOMAD magnet, DESY for the HERA-B magnet mover system, NII for SINET4, the WestGrid and SciNet consortia in Compute Canada, and GridPP in the United Kingdom. In addition, participation of individual researchers and institutions has been further supported by funds from the ERC (FP7), “la Caixa” Foundation (ID 100010434, fellowship code LCF/BQ/IN17/11620050), the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska- Curie Grants Agreement No. 713673 and No. 754496, and H2020 Grant No. RISE-GA822070-JENNIFER2 2020 and No. RISE-GA872549-SK2HK; the JSPS, Japan; the Royal Society, UK; French ANR Grant No. ANR-19- CE31-0001; and the DOE Early Career programme, USA.
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- 2020
23. Development of low-background photomultiplier tubes for liquid xenon detectors
- Author
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Hiroyuki Sekiya, K. Kanzawa, Y. Fukuda, Kimiaki Masuda, Koichi Ichimura, B. S. Yang, Lee Min-Kie, Shigetaka Moriyama, Masaki Yamashita, S. Imaizumi, Y. D. Kim, N. Kato, Y. Takeuchi, Katsuki Hiraide, Shigeki Tasaka, Kentaro Miuchi, R. Ishii, K. Martens, K.B. Lee, Hiroshi Ogawa, Ken-ichiro Kobayashi, M. Kobayashi, T. Suzuki, B. D. Xu, Yong Hamb Kim, Yoshitaka Itow, Yoshihiro Suzuki, Yu-heng Chen, Masayuki Nakahata, A. Mason, Nam Young Kim, Ko Abe, K. Nishijima, Yasuhiro Kishimoto, Katsuhiko Sato, Atsushi Takeda, Ken-Ichi Fushimi, and Shogo Nakamura
- Subjects
Photomultiplier ,Materials science ,Photon ,Physics - Instrumentation and Detectors ,010308 nuclear & particles physics ,business.industry ,Dark matter ,Detector ,chemistry.chemical_element ,FOS: Physical sciences ,Instrumentation and Detectors (physics.ins-det) ,01 natural sciences ,Photocathode ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Xenon ,Optics ,chemistry ,Double beta decay ,0103 physical sciences ,business ,Instrumentation ,Mathematical Physics ,Leakage (electronics) - Abstract
We successfully developed a new photomultiplier tube (PMT) with a three-inch diameter, convex-shaped photocathode, R13111. Its prominent features include good performance and ultra-low radioactivity. The convex-shaped photocathode realized a large photon acceptance and good timing resolution. Low radioactivity was achieved by three factors: (1) the glass material was synthesized using low-radioactive-contamination material; (2) the photocathode was produced with $^{39}$K-enriched potassium; and (3) the purest grade of aluminum material was used for the vacuum seal. As a result each R13111 PMT contains only about 0.4 mBq of $^{226}$Ra, less than 2 mBq of $^{238}$U, 0.3 mBq of $^{228}$Ra, 2 mBq of $^{40}$K and 0.2 mBq of $^{60}$Co. We also examined and resolved the intrinsic leakage of Xe gas into PMTs that was observed in several older models. We thus succeeded in developing a PMT that has low background, large angular acceptance with high collection efficiency, good timing resolution, and long-term stable operation. These features are highly desirable for experiments searching for rare events beyond the standard model, such as dark matter particle interactions and neutrinoless double beta decay events.
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- 2020
24. Search for exotic neutrino-electron interactions using solar neutrinos in XMASS-I
- Author
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N. Kato, K. Nishijima, R. Ishii, Y. Takeuchi, K.B. Lee, K. Kanzawa, Katsuhiko Sato, Atsushi Takeda, Ken-Ichi Fushimi, Shogo Nakamura, Yeongduk Kim, Yasuhiro Kishimoto, Masaki Yamashita, Katsuki Hiraide, K. Martens, Yu-heng Chen, Kentaro Miuchi, Hiroyuki Sekiya, T. Suzuki, Y. Fukuda, Hiroshi Ogawa, Yoshihiro Suzuki, Yoshitaka Itow, Byeong su Yang, Ken-ichiro Kobayashi, Masayuki Nakahata, M. Kobayashi, Yong Hamb Kim, Koichi Ichimura, S. Imaizumi, Nam Young Kim, Shigeki Tasaka, Shigetaka Moriyama, B. D. Xu, A. Mason, Lee Min-Kie, and Ko Abe
- Subjects
Nuclear and High Energy Physics ,Photon ,Physics::Instrumentation and Detectors ,Solar neutrino ,FOS: Physical sciences ,chemistry.chemical_element ,Electron ,01 natural sciences ,Dark photon ,High Energy Physics - Experiment ,Magnetic moment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,Xenon ,Neutrino ,0103 physical sciences ,010306 general physics ,Low background ,High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,Coupling constant ,010308 nuclear & particles physics ,High Energy Physics::Phenomenology ,lcsh:QC1-999 ,chemistry ,High Energy Physics::Experiment ,Millicharge ,Liquid xenon ,Astrophysics - High Energy Astrophysical Phenomena ,lcsh:Physics - Abstract
We have searched for exotic neutrino-electron interactions that could be produced by a neutrino millicharge, by a neutrino magnetic moment, or by dark photons using solar neutrinos in the XMASS-I liquid xenon detector. We observed no significant signals in 711 days of data. We obtain an upper limit for neutrino millicharge of 5.4×10−12e at 90% confidence level assuming all three species of neutrino have common millicharge. We also set flavor-dependent limits assuming the respective neutrino flavor is the only one carrying a millicharge, 7.3×10−12e for νe, 1.1×10−11e for νμ, and 1.1×10−11e for ντ. These limits are the most stringent yet obtained from direct measurements. We also obtain an upper limit for the neutrino magnetic moment of 1.8×10−10 Bohr magnetons. In addition, we obtain upper limits for the coupling constant of dark photons in the U(1)B−L model of 1.3×10−6 if the dark photon mass is 1×10−3 MeV/c2, and 8.8×10−5 if it is 10 MeV/c2.
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- 2020
25. First limits from a 3d-vector directional dark matter search with the NEWAGE-0.3b' detector
- Author
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Toru Tanimori, Yushiro Yamaguchi, Atsushi Takada, Miki Nakazawa, R. Yakabe, Ryosuke Taishaku, Atsushi Takeda, Hiroyuki Sekiya, Hidetoshi Kubo, Kentaro Miuchi, Hiroshi Ito, Tomonori Ikeda, Kiseki Nakamura, Takuma Nakamura, Hirohisa Ishiura, and Takuya Shimada
- Subjects
Physics ,Physics - Instrumentation and Detectors ,010308 nuclear & particles physics ,Dark matter ,Detector ,FOS: Physical sciences ,General Physics and Astronomy ,Instrumentation and Detectors (physics.ins-det) ,Tracking (particle physics) ,01 natural sciences ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,0103 physical sciences ,Underground laboratory ,Sensitivity (control systems) ,010306 general physics ,Euclidean vector - Abstract
The first directional dark matter search with three-dimensional tracking with head–tail sensitivity (3D-vector tracking analysis) was performed with a gaseous three-dimensional tracking detector, or the NEWAGE-0.3b’ detector. The search was carried out from 2013 July to 2017 August (Run14 to Run18) at the Kamioka underground laboratory. The total livetime is 434.85 d, corresponding to an exposure of 4.51 kg$\>$d. A 90 % confidence level upper limit on spin-dependent WIMP-proton cross-section of $4.3\times10^{2}$ pb for WIMPs with the mass of 150 GeV$\>c^{-2}$ is obtained.
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- 2020
26. Anisotropic response measurements of ZnWO4 scintillators to neutrons for developing a direction-sensitive dark matter detector
- Author
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Juan W. Pedersen, Koichi Ichimura, and Hiroyuki Sekiya
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Physics ,010308 nuclear & particles physics ,business.industry ,Detector ,Dark matter ,General Physics and Astronomy ,Scintillator ,01 natural sciences ,Optics ,0103 physical sciences ,Neutron ,Nuclear Experiment ,010306 general physics ,business ,Anisotropy - Abstract
The scintillation yields of ZnWO$_4$ crystals change depending on the incident direction of particles. This property can be used as a direction-sensitive dark matter detector, so we investigated the ZnWO$_4$ light yields ratio of neutron-induced nuclear recoils to gamma-ray-induced electron recoils (quenching factor). Two surfaces almost perpendicular to the crystal axis of ZnWO$_4$ were irradiated with a quasi-monochromatic neutron beam of 0.885 MeV, and the quenching factors of both surfaces for the oxygen-nucleus recoil in the ZnWO$_4$ crystal were measured. The obtained quenching factors of the two surfaces were $0.235 \pm 0.026$ and $0.199 \pm 0.020$, respectively, confirming 15.3% anisotropy.
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- 2020
27. Measurement of the muon neutrino charged-current single π+ production on hydrocarbon using the T2K off-axis near detector ND280
- Author
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Rosario Castillo, B. A. Popov, Alexei Yu. Smirnov, K. Nishikawa, C. K. Jung, M. Ikeda, Masato Shiozawa, L. Ludovici, H. Kakuno, Kate Scholberg, L. Zambelli, Jan T. Sobczyk, S. Bhadra, M. Antonova, D. Hansen, T. Feusels, P. Novella, M. M. Khabibullin, J. C. Nugent, O. Drapier, S. King, E. Kearns, W. G. S. Vinning, M. McCarthy, Masashi Yokoyama, W. Shorrock, N. T. Hong Van, J. Walker, T. V. Ngoc, A. Mefodiev, C. Francois, K. Mavrokoridis, D. R. Hadley, T. Ishida, Tsuyoshi Nakaya, A. D. Marino, A. Hiramoto, T. Hasegawa, S. Tobayama, T. Lou, M. Lawe, J. Harada, H. W. Sobel, J. T. Haigh, Ryuji Tamura, F. Iacob, Gareth J. Barker, F. Nova, A. Shaikhiev, R. G. Calland, S. Bordoni, S. Yamasu, J. Holeczek, T. Radermacher, Thomas B. Campbell, K. Nakamura, P. Hamacher-Baumann, J. P. Coleman, K. Nakayoshi, L. Molina Bueno, A. T. Suzuki, F. Gizzarelli, F. Shaker, T. Tomura, B. Quilain, Vincenzo Berardi, A. Zalewska, Y. Nagai, J. F. Martin, N. D. Patel, F. J. P. Soler, Marco Laveder, T. Nakadaira, S. Valder, T. Shirahige, E. Radicioni, M. Ziembicki, J. Zalipska, J. Insler, F. Sanchez, Shin Sasaki, R. M. Berner, Yufeng Wang, K. Sakashita, S. M. Oser, S. Bienstock, J. L. Palomino, G. Vasseur, L. Berns, M. Posiadala-Zezula, T. Inoue, S. Zsoldos, T.S. Nonnenmacher, A. Ali, K. Iwamoto, Y. Nishimura, D. Shaw, W. H. Toki, Y. Takeuchi, A. Blondel, A. Rychter, Y. Kataoka, Akitaka Ariga, Ko Okumura, L. Pickering, G. Fiorillo, M. Hartz, M. Barbi, Alyssa Garcia, B. Bourguille, T. Kajita, K. Zaremba, P. Stowell, S. Mine, K. M. Tsui, Shigeki Aoki, C. Alt, Yutaka Nakajima, D. Karlen, Atsushi Takeda, G. Yang, S. V. Cao, L. Maret, K. Yasutome, Yoshihiro Suzuki, V. Matveev, A. Bravar, S. L. Liu, P. N. Ratoff, Alessandro Ruggeri, N. Kukita, M. Licciardi, W. Uno, M. Lamoureux, T. Thakore, T. Kutter, T. Matsubara, Hidetoshi Kubo, A. C. Weber, C. Touramanis, M. Friend, M. Jiang, Antonio Ereditato, N. Yershov, Y. Petrov, C. Wilkinson, T. Maruyama, S. Ban, T. Wachala, K. Kowalik, Teppei Katori, M. Hogan, G.D. Barr, G. Collazuol, N. Chikuma, Mark Scott, S. Berkman, T. Ishii, N. Dokania, P. P. Koller, A. Minamino, S. Bolognesi, C. Jesús-Valls, N. McCauley, M. Malek, J. Morrison, T. Golan, V. Paolone, T. Yano, Yoshikazu Yamada, Z. J. Liptak, Y. Awataguchi, Z. Vallari, C. W. Walter, Patrick Dunne, A. Shvartsman, W. Y. Ma, H. J. Kim, A. Pritchard, Yuki Fujii, A. N. Khotjantsev, E. D. Zimmerman, S. J. Jenkins, Todd D. Stewart, M. J. Wilking, Pablo Fernandez, D. Vargas, M. A. M. Rayner, G. Zarnecki, P. F. Denner, A. Knox, J. Dumarchez, J. Schwehr, T. Sekiguchi, M. Buizza Avanzini, Hiroyuki Sekiya, R. Fujita, F. Bench, C. Pistillo, B. Jamieson, Y. Fukuda, Kendall Mahn, Keigo Nakamura, D. Coplowe, D. Brailsford, K. Gameil, Y. Sonoda, C. J. Densham, L. Cook, I. Lamont, A. Cervera, C. Nielsen, M. Kabirnezhad, G. C. Penn, T. Hayashino, R. Fukuda, A. Dabrowska, S. R. Dennis, T. Koga, Per Jönsson, C. M. Schloesser, Shuji Tanaka, Davide Sgalaberna, T. Okusawa, R. Akutsu, Y. Seiya, D. Cherdack, M. R. Vagins, S. Y. Suzuki, K. Abe, C. McGrew, S. Dolan, T. Lindner, L. Koch, Y. Hayato, C. Andreopoulos, A. Cudd, A. C. Kaboth, T. Vladisavljevic, J. Y. Kim, E. Mazzucato, Thorsten Lux, Seiko Hirota, M. Gonin, Y. Ashida, W. Oryszczak, K. S. Wood, G. Christodoulou, M. Mezzetto, M. Zito, Y. Nakanishi, S. Moriyama, Yuichi Oyama, S. Suvorov, R. P. Litchfield, Masayuki Nakahata, C. Pidcott, Y. Uchida, M. Tzanov, C. J. Metelko, A. Longhin, A. Shaykina, Giovanni Fiorentini, K. Matsushita, Yu. Kudenko, E. T. Atkin, A. Beloshapkin, R. A. Intonti, G. De Rosa, Koji Yamamoto, M. Pavin, J. Calcutt, Masaki Ishitsuka, A. Konaka, L. Munteanu, Yusuke Koshio, Leïla Haegel, Takahiro Hiraki, O. V. Mineev, James R. Wilson, Yusuke Suda, C. Vilela, R. Shah, E. Rondio, R. A. Owen, A. Gorin, M. Batkiewicz-Kwasniak, M. Miura, C. Wret, C. M. Nantais, K. E. Duffy, H.A. Tanaka, S. Murphy, Xianguo Lu, M. Yu, J. M. Poutissou, C. Bronner, K. Niewczas, M. Guigue, P. Paudyal, J. Walsh, J. P. Lopez, J. Imber, L. H. V. Anthony, André Rubbia, S. L. Cartwright, K. Huang, K. Porwit, S. Manly, Xiao-yan Li, L. L. Kormos, W. Parker, P. Przewlocki, P. Lasorak, S. Martynenko, David A. Wark, J. Lagoda, R. J. Wilson, C. Checchia, Vladimir Volkov, A. Nakamura, Lester D.R. Thompson, R. Tacik, D. Fukuda, C. Riccio, M. G. Catanesi, L. O'Sullivan, T. Yoshida, K. S. McFarland, Jan Kisiel, L. Labarga, T. Kobayashi, H. K. Tanaka, A. Zykova, J. Amey, Alexander Finch, T. Dealtry, A. Missert, B. Radics, P. Martins, F. Di Lodovico, M. Tada, D. J. Payne, M. Kuze, N. C. Hastings, Steven C. Johnson, S. Nakayama, R. A. Wendell, S. Yen, S. Emery-Schrenk, T. Tsukamoto, A. K. Ichikawa, S. Roth, J. Kameda, Y. Azuma, E. S. Pinzon Guerra, Th. A. Mueller, A. Knight, J. Steinmann, H. M. O'Keeffe, T. Ovsyannikova, M. O. Wascko, C. Barry, B. Rossi, C. Yanagisawa, L. Magaletti, C. Giganti, V. Palladino, J. A. Nowak, E. Iwai, A. Chappell, A. A. Sztuc, E. Reinherz-Aronis, E. Scantamburlo, R.P. Kurjata, F. Hosomi, M. B. Smy, Lars Eklund, Yuta Kato, A. Hillairet, L. N. Machado, S. B. Boyd, and Artur F. Izmaylov
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Physics ,Muon ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,7. Clean energy ,01 natural sciences ,Nuclear physics ,Cross section (physics) ,Pion ,0103 physical sciences ,High Energy Physics::Experiment ,Muon neutrino ,Production (computer science) ,Neutrino ,Nuclear Experiment ,010306 general physics ,Nucleon ,Charged current - Abstract
We report the measurements of single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K off-axis near detector using $5.56\times10^{20}$ protons on target. The analysis uses data control samples for the background subtraction and the cross section signal, defined as a single negatively charged muon and a single positively charged pion exiting from the target nucleus, is extracted using an unfolding method. The model dependent cross section, integrated over the T2K off-axis neutrino beam spectrum peaking at $0.6$~GeV, is measured to be $\sigma = (11.76 \pm 0.44 \text{(stat)} \pm 2.39 \text{(syst)}) \times 10^{-40} \text{cm}^2$~$\text{nucleon}^{-1}$. Various differential cross sections are measured, including the first measurement of the Adler angles for single charged pion production in neutrino interactions with heavy nuclei target.
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- 2020
28. Design and performance of a high-pressure xenon gas TPC as a prototype for a large-scale neutrinoless double-beta decay search
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Hiroyuki Sekiya, T. Kikawa, Yoshihisa Iwashita, M. Hirose, S. Ban, B. Sugashima, Minoru Yoshida, A. Minamino, Kentaro Miuchi, K. Ueshima, K. Z. Nakamura, S. Obara, Kiseki Nakamura, A. K. Ichikawa, Yutaka Nakajima, T. Nakadaira, Ken Sakashita, Shiro Tanaka, and Tsuyoshi Nakaya
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Physics ,Time projection chamber ,Physics - Instrumentation and Detectors ,Bar (music) ,Physics::Instrumentation and Detectors ,Detector ,Extrapolation ,FOS: Physical sciences ,General Physics and Astronomy ,chemistry.chemical_element ,Instrumentation and Detectors (physics.ins-det) ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,Full width at half maximum ,Xenon ,chemistry ,Double beta decay ,High Energy Physics::Experiment ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment ,Energy (signal processing) - Abstract
A high-pressure xenon gas time projection chamber, with a unique cellular readout structure based on electroluminescence, has been developed for a large-scale neutrinoless double-beta decay search. In order to evaluate the detector performance and validate its design, a 180~L size prototype is being constructed and its commissioning with partial detector has been performed. The obtained energy resolution at 4.0~bar is 1.73 $\pm$ 0.07% (FWHM) at 511 keV. The energy resolution at the $^{136}$Xe neutrinoless double-beta decay Q-value is estimated to be between 0.79 and 1.52% (FWHM) by extrapolation. Reconstructed event topologies show patterns peculiar to track end-point which can be used to distinguish $0\nu\beta\beta$ signals from gamma-ray backgrounds., Comment: 24 pages, 25 figures, 1 table. Preprint paper for PTEP
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- 2020
29. Measurement of the charged-current electron (anti-)neutrino inclusive cross-sections at the T2K off-axis near detector ND280
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M. Gonin, Lars Eklund, C. Bronner, T. Vladisavljevic, E. Rondio, N. McCauley, C. M. Nantais, Thorsten Lux, K. Porwit, A. Eguchi, C. Touramanis, M. Jiang, Antonio Ereditato, N. Yershov, M. McCarthy, T. Lindner, T. Kikawa, Kevin Scott McFarland, S. Suvorov, R. P. Litchfield, S. Ban, M. Barbi, P. Hamacher-Baumann, L. Molina Bueno, B. Radics, B. Bourguille, A. Mefodiev, Vladimir Volkov, S. R. Johnson, J. Morrison, J. McElwee, C. E. R. Naseby, Lester D.R. Thompson, M. Mezzetto, N. Dokania, S. M. Oser, G. Pintaudi, Y. Ashida, A. Gorin, M. Ikeda, K. Nakayoshi, Kimihiro Okumura, M. J. Wilking, C. Alt, N. Teshima, A. T. Suzuki, Y. Nagai, Y. Fukuda, G. Christodoulou, P. B. Jurj, G. Zarnecki, M. Buizza Avanzini, F. Iacob, L. Berns, T. Towstego, S. Murphy, S. Bolognesi, C. K. Jung, B. Quilain, J. Kameda, T. Okusawa, Alexander N. Smirnov, K. Nakamura, K. Sakashita, M. Kuze, G.D. Barr, K. Niewczas, M. M. Khabibullin, R. Wendell, Y. Tanihara, Th. A. Mueller, N. Kukita, M. Licciardi, T. Feusels, T. Hayashino, R. Fukuda, C. Wilkinson, C. Giganti, S. Kuribayashi, R. Akutsu, M. Vagins, M. Yu, T. Kobata, S. Mine, D. Brailsford, T. Radermacher, A. Bubak, K. Iwamoto, A. Knox, T. Arihara, Y. Hayato, L. Ludovici, S. Parsa, J. Steinmann, T. Honjo, Y. Nakajima, G. Fiorillo, Hiroyuki Sekiya, F. Nova, Y. Oyama, Hyun-Chul Kim, V. Paolone, P. Novella, Jaroslaw Pasternak, K. Mavrokoridis, Y. Fujii, A. Konaka, J. L. Palomino, R. Fujita, D. Karlen, L. Pickering, C. Ruggles, G. Santucci, S. L. Liu, Z. Vallari, K. Wood, Masayuki Nakahata, C. Pidcott, Y. Uchida, E. D. Zimmerman, E. Mazzucato, A. Takeda, J. C. Nugent, Keigo Nakamura, C. Vilela, Kendall Mahn, A. Rychter, C. Checchia, A. Longhin, M. Friend, A. Shaykina, J. Lagoda, S. R. Dennis, Yoshihiro Suzuki, K. M. Tsui, C. M. Schloesser, Robert Wilson, C. Barry, A. Hiramoto, R.P. Kurjata, Marco Laveder, S. King, A. Izmaylov, A. C. Kaboth, S. P. Kasetti, J. Zalipska, R. Shah, T. Kobayashi, M. G. Catanesi, T. Hasegawa, A. Blondel, D. Sgalaberna, C. Jesús-Valls, Alexander Finch, L. N. Machado, J. Holeczek, Michelangelo Pari, Shuji Tanaka, G. De Rosa, J. G. Walsh, Y. Takeuchi, R. A. Owen, X. Junjie, H. Kikutani, A. Cervera, K. Yamamoto, D. R. Hadley, L. Marti-Magro, F. Bench, K. Zaremba, J. T. Haigh, O. Drapier, S. Yen, D. Cherdack, Y. Kato, S. Valder, A. Pritchard, T. Campbell, Y. Kataoka, M. Batkiewicz-Kwasniak, E. T. Atkin, K. Yasutome, V. A. Matveev, C. Metelko, C. Wret, T. Nakadaira, N. Akhlaq, T. Kajita, M. Lawe, T. Wachala, L. Maret, M. Tani, T. Sekiguchi, Stephanie Bron, C. Riccio, T. Dealtry, K. Abe, C. McGrew, M. Pavin, S. J. Jenkins, L. Koch, M. Guigue, T. Tsukamoto, Akitaka Ariga, D. Coplowe, A. Beloshapkin, M. Miura, F. Di Lodovico, A. A. Sztuc, Federico Sanchez, E. S. Pinzon Guerra, M. Tada, Vincenzo Berardi, G. A. Fiorentini, P. Paudyal, A. Bravar, M. Kabirnezhad, C. Andreopoulos, A. Zykova, W. Toki, Y. Awataguchi, D. Barrow, T. Ishii, P. N. Ratoff, Yu. G. Kudenko, Etam Noah, F. J. P. Soler, T. Kutter, S. L. Cartwright, T. Bonus, N. C. Hastings, D. G. Payne, H. Kubo, A. Nakamura, S. Nakayama, J. Calcutt, Y. Asada, Hiromasa Tanaka, P. Jonsson, Ahmed Ali, M. Hogan, Shigeki Aoki, G. C. Penn, L. Labarga, Alan Cosimo Ruggeri, Y. Nishimura, Gareth J. Barker, M. B. Smy, A. Knight, Y. Seiya, L. Munteanu, H. Sobel, T. Ishida, T. Odagawa, Xiao-yan Li, T. S. Nonnenmacher, S. Bienstock, M. Tajima, Yusuke Koshio, Teppei Katori, L. L. Kormos, H. M. O'Keeffe, E. Radicioni, M. Lamoureux, Y. Sonoda, J. P. Coleman, Laura Gutermuth Anthony, K. Kowalik, S. Zsoldos, S. Roth, C. Pistillo, A. Dabrowska, F. Shaker, T. Matsubara, D. L. Wark, G. Vasseur, V. Palladino, Patrick Dunne, N. Chikuma, J. A. Nowak, W. C. Parker, M. O. Wascko, A. Chappell, E. Kearns, Sy Suzuki, A. N. Khotjantsev, A. K. Ichikawa, J. F. Martin, M. Tzanov, M. Jakkapu, J. R. Wilson, M. Ishitsuka, W. Shorrock, J. Kisiel, Yuuki Nakano, S. Manly, P. F. Denner, A. Minamino, T. Yano, M. Antonova, K. Matsushita, A. D. Marino, R. Okada, T. Ogawa, Y. Katayama, S. Emery-Schrenk, M. Malek, S. Moriyama, Samira Hassani, T. A. Doyle, Jan T. Sobczyk, S. Dolan, C. Densham, A. Cudd, T. Koga, Oleg Mineev, C. Francois, M. Ziembicki, Yufeng Wang, M. Zito, Hidekazu Kakuno, Y. Yamada, G. Yang, S. B. Boyd, N. Izumi, B. A. Popov, B. Jamieson, A. Zalewska, T. Golan, A. Shvartsman, K. Fusshoeller, D. Bravo Berguño, Pablo Fernandez, Kate Scholberg, H. K. Tanaka, D. Vargas, A. C. Weber, J. Dumarchez, J. Schwehr, M. Posiadala-Zezula, G. Collazuol, Mark Scott, T. Yoshida, M. Cicerchia, W. G. S. Vinning, T. Maruyama, T. V. Ngoc, A. Shaikhiev, E. Reinherz-Aronis, K. Nishikawa, Masashi Yokoyama, N. T. Hong Van, J. Walker, Tsuyoshi Nakaya, C. Mauger, Masato Shiozawa, A. Kostin, D. Fukuda, S. Bhadra, L. Cook, L. O'Sullivan, Xianguo Lu, M. Hartz, André Rubbia, L. Magaletti, C. Yanagisawa, S. V. Cao, Ministerio de Economía y Competitividad (España), Abe, K., Akutsu, R., Ali, A., Alt, C., Andreopoulos, C., Anthony, L., Antonova, M., Aoki, S., Ariga, A., Ashida, Y., Atkin, E. T., Awataguchi, Y., Ban, S., Barbi, M., Barker, G. J., Barr, G., Barry, C., Batkiewicz-Kwasniak, M., Beloshapkin, A., Bench, F., Berardi, V., Berkman, S., Berns, L., Bhadra, S., Bienstock, S., Blondel, A., Bolognesi, S., Bourguille, B., Boyd, S. B., Brailsford, D., Bravar, A., Berguno, D. Bravo, Bronner, C., Bubak, A., Avanzini, M. Buizza, Calcutt, J., Campbell, T., Cao, S., Cartwright, S. L., Catanesi, M. G., Cervera, A., Chappell, A., Checchia, C., Cherdack, D., Chikuma, N., Christodoulou, G., Coleman, J., Collazuol, G., Cook, L., Coplowe, D., Cudd, A., Dabrowska, A., De Rosa, G., Dealtry, T., Denner, P. F., Dennis, S. R., Densham, C., Di Lodovico, F., Dokania, N., Dolan, S., Drapier, O., Dumarchez, J., Dunne, P., Eklund, L., Emery-Schrenk, S., Ereditato, A., Fernandez, P., Feusels, T., Finch, A. J., Fiorentini, G. A., Fiorillo, G., Francois, C., Friend, M., Fujii, Y., Fujita, R., Fukuda, D., Fukuda, R., Fukuda, Y., Gameil, K., Giganti, C., Golan, T., Gonin, M., Gorin, A., Guigue, M., Hadley, D. R., Haigh, J. T., Hamacher-Baumann, P., Hartz, M., Hasegawa, T., Hastings, N. C., Hayashino, T., Hayato, Y., Hiramoto, A., Hogan, M., Holeczek, J., Hong Van, N. T., Iacob, F., Ichikawa, A. K., Ikeda, M., Ishida, T., Ishii, T., Ishitsuka, M., Iwamoto, K., Izmaylov, A., Jamieson, B., Jenkins, S. J., Jesus-Valls, C., Jiang, M., Johnson, S., Jonsson, P., Jung, C. K., Kabirnezhad, M., Kaboth, A. C., Kajita, T., Kakuno, H., Kameda, J., Karlen, D., Kasetti, S. P., Kataoka, Y., Katori, T., Kato, Y., Kearns, E., Khabibullin, M., Khotjantsev, A., Kikawa, T., Kim, H., Kim, J., King, S., Kisiel, J., Knight, A., Knox, A., Kobayashi, T., Koch, L., Koga, T., Konaka, A., Kormos, L. L., Koshio, Y., Kowalik, K., Kubo, H., Kudenko, Y., Kukita, N., Kuribayashi, S., Kurjata, R., Kutter, T., Kuze, M., Labarga, L., Lagoda, J., Lamoureux, M., Laveder, M., Lawe, M., Licciardi, M., Lindner, T., Litchfield, R. P., Liu, S. L., Li, X., Longhin, A., Ludovici, L., Lu, X., Lux, T., Nascimento Machado, L., Magaletti, L., Mahn, K., Malek, M., Manly, S., Maret, L., Marino, A. D., Martin, J. F., Maruyama, T., Matsubara, T., Matsushita, K., Matveev, V., Mavrokoridis, K., Mazzucato, E., Mccarthy, M., Mccauley, N., Mcfarland, K. S., Mcgrew, C., Mefodiev, A., Metelko, C., Mezzetto, M., Minamino, A., Mineev, O., Mine, S., Miura, M., Bueno, L. Molina, Moriyama, S., Morrison, J., Mueller, Th. A., Munteanu, L., Murphy, S., Nagai, Y., Nakadaira, T., Nakahata, M., Nakajima, Y., Nakamura, A., Nakamura, K. G., Nakamura, K., Nakayama, S., Nakaya, T., Nakayoshi, K., Nantais, C., Ngoc, T. V., Niewczas, K., Nishikawa, K., Nishimura, Y., Nonnenmacher, T. S., Nova, F., Novella, P., Nowak, J., Nugent, J. C., O'Keeffe, H. M., O'Sullivan, L., Odagawa, T., Okumura, K., Okusawa, T., Oser, S. M., Owen, R. A., Oyama, Y., Palladino, V., Palomino, J. L., Paolone, V., Parker, W. C., Paudyal, P., Pavin, M., Payne, D., Penn, G. C., Pickering, L., Pidcott, C., Guerra, E. S. Pinzon, Pistillo, C., Popov, B., Porwit, K., Posiadala-Zezula, M., Pritchard, A., Quilain, B., Radermacher, T., Radicioni, E., Radics, B., Ratoff, P. N., Reinherz-Aronis, E., Riccio, C., Rondio, E., Roth, S., Rubbia, A., Ruggeri, A. C., Rychter, A., Sakashita, K., Sanchez, F., Schloesser, C. M., Scholberg, K., Schwehr, J., Scott, M., Seiya, Y., Sekiguchi, T., Sekiya, H., Sgalaberna, D., Shah, R., Shaikhiev, A., Shaker, F., Shaykina, A., Shiozawa, M., Shorrock, W., Shvartsman, A., Smirnov, A., Smy, M., Sobczyk, J. T., Sobel, H., Soler, F. J. P., Sonoda, Y., Steinmann, J., Suvorov, S., Suzuki, A., Suzuki, S. Y., Suzuki, Y., Sztuc, A. A., Tada, M., Tajima, M., Takeda, A., Takeuchi, Y., Tanaka, H. K., Tanaka, H. A., Tanaka, S., Thompson, L. F., Toki, W., Touramanis, C., Tsui, K. M., Tsukamoto, T., Tzanov, M., Uchida, Y., Uno, W., Vagins, M., Valder, S., Vallari, Z., Vargas, D., Vasseur, G., Vilela, C., Vinning, W. G. S., Vladisavljevic, T., Volkov, V. V., Wachala, T., Walker, J., Walsh, J. G., Wang, Y., Wark, D., Wascko, M. O., Weber, A., Wendell, R., Wilking, M. J., Wilkinson, C., Wilson, J. R., Wilson, R. J., Wood, K., Wret, C., Yamada, Y., Yamamoto, K., Yanagisawa, C., Yang, G., Yano, T., Yasutome, K., Yen, S., Yershov, N., Yokoyama, M., Yoshida, T., Yu, M., Zalewska, A., Zalipska, J., Zaremba, K., Zarnecki, G., Ziembicki, M., Zimmerman, E. D., Zito, M., Zsoldos, S., Zykova, A., Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), T2K, Science and Technology Facilities Council (STFC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and ANR-19-CE31-0001,SUNCORE,Incertitudes systématiques dans les combinaisons de résultats d'oscillations de neutrinos(2019)
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electron ,Physics::Instrumentation and Detectors ,Monte Carlo method ,far detector ,Electron ,KAMIOKANDE ,antineutrino/mu: secondary beam ,Other experiments ,antineutrino/e: particle identification ,01 natural sciences ,neutrino: flux ,High Energy Physics - Experiment ,charged current ,High Energy Physics - Experiment (hep-ex) ,secondary beam [neutrino/mu] ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,neutrino/e: particle identification ,measured [total cross section] ,detector [neutrino] ,Charged current ,Physics ,0105 Mathematical Physics ,J-PARC Lab ,Detector ,Monte Carlo [numerical calculations] ,Nuclear & Particles Physics ,angular dependence ,neutrino: detector ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,Neutrino ,numerical calculations: Monte Carlo ,Particle Physics - Experiment ,scattering [neutrino] ,Nuclear and High Energy Physics ,530 Physics ,Astrophysics::High Energy Astrophysical Phenomena ,particle identification [antineutrino/e] ,FOS: Physical sciences ,momentum dependence ,secondary beam [antineutrino/mu] ,Nuclear physics ,Momentum ,differential cross section: measured ,phase space ,near detector ,measured [differential cross section] ,0103 physical sciences ,neutrino: scattering ,ddc:530 ,lcsh:Nuclear and particle physics. Atomic energy. Radioactivity ,010306 general physics ,0206 Quantum Physics ,hep-ex ,010308 nuclear & particles physics ,Scattering ,particle identification [neutrino/e] ,background ,Computer Science::Information Retrieval ,High Energy Physics::Phenomenology ,scintillation counter: target ,flux [neutrino] ,neutrino/mu: secondary beam ,total cross section: measured ,target [scintillation counter] ,lcsh:QC770-798 ,High Energy Physics::Experiment ,Electron neutrino ,experimental results - Abstract
The electron (anti-)neutrino component of the T2K neutrino beam constitutes the largest background in the measurement of electron (anti-)neutrino appearance at the far detector. The electron neutrino scattering is measured directly with the T2K off-axis near detector, ND280. The selection of the electron (anti-)neutrino events in the plastic scintillator target from both neutrino and anti-neutrino mode beams is discussed in this paper. The flux integrated single differential charged-current inclusive electron (anti-)neutrino cross-sections, dσ/dp and dσ/d cos(θ), and the total cross-sections in a limited phase-space in momentum and scattering angle (p > 300 MeV/c and θ ≤ 45°) are measured using a binned maximum likelihood fit and compared to the neutrino Monte Carlo generator predictions, resulting in good agreement., Journal of High Energy Physics, 2020 (10), ISSN:1126-6708, ISSN:1029-8479
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- 2020
- Full Text
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30. Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam
- Author
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E. Rondio, N. McCauley, C. M. Nantais, K. Porwit, J. T. Haigh, M. McCarthy, Vladimir Volkov, Lester D.R. Thompson, M. Mezzetto, W. Toki, L. Molina Bueno, K. Nishikawa, A. A. Sztuc, E. S. Pinzon Guerra, M. Vagins, S. Mine, Xianguo Lu, F. Di Lodovico, M. Barbi, M. Tada, B. Radics, Masashi Yokoyama, C. Alt, K. M. Tsui, M. G. Catanesi, Yu. G. Kudenko, N. C. Hastings, N. T. Hong Van, Y. Takeuchi, K. Kowalik, J. Walker, R. Shah, S. V. Cao, V. Paolone, A. Knight, André Rubbia, B. Bourguille, L. Magaletti, M. Gonin, Y. Nishimura, G. De Rosa, J. G. Walsh, S. M. Oser, Tsuyoshi Nakaya, Alexander N. Smirnov, Th. A. Mueller, T. Towstego, Z. Vallari, K. Wood, R. A. Owen, M. Batkiewicz-Kwasniak, D. Karlen, L. Maret, R. Akutsu, H. M. O'Keeffe, Y. Sonoda, P. N. Ratoff, T. Kutter, S. P. Kasetti, C. Ruggles, F. Iacob, L. Berns, E. D. Zimmerman, A. Cervera, A. Mefodiev, M. Ikeda, K. Nakayoshi, Kimihiro Okumura, N. Kukita, M. Licciardi, N. Chikuma, A. N. Khotjantsev, J. C. Nugent, S. King, T. Feusels, S. Bolognesi, Y. Ashida, A. Beloshapkin, Teppei Katori, K. Yamamoto, C. Wret, M. Guigue, J. A. Nowak, M. Miura, A. Shaikhiev, A. Chappell, T. Okusawa, M. O. Wascko, E. Kearns, S. L. Liu, C. Yanagisawa, Lars Eklund, Y. Oyama, J. Calcutt, G. Fiorillo, S. Berkman, B. Quilain, T. A. Doyle, P. Paudyal, C. Bronner, E. Radicioni, K. Niewczas, Hyun-Chul Kim, A. Izmaylov, J. Steinmann, M. M. Khabibullin, M. Zito, Hidekazu Kakuno, P. Novella, K. Nakamura, R. Wendell, E. Reinherz-Aronis, Y. Fukuda, G. Christodoulou, S. L. Cartwright, Vincenzo Berardi, D. Barrow, O. Drapier, L. Pickering, F. J. P. Soler, G. Yang, J. L. Palomino, J. Zalipska, E. T. Atkin, Y. Nakajima, K. Sakashita, M. Kuze, L. Marti-Magro, L. Munteanu, Alan Cosimo Ruggeri, K. Zaremba, Laura Gutermuth Anthony, C. Vilela, D. Fukuda, D. Sgalaberna, Hiroyuki Sekiya, F. Nova, T. Matsubara, C. Wilkinson, C. Touramanis, Y. Kato, M. Tajima, R. Fujita, S. Yen, K. Yasutome, D. L. Wark, S. Bienstock, L. O'Sullivan, A. Knox, M. Jiang, D. R. Hadley, S. Ban, Yusuke Koshio, Kendall Mahn, G. Vasseur, J. Lagoda, Yoshihiro Suzuki, L. N. Machado, Antonio Ereditato, Federico Sanchez, A. C. Weber, D. Brailsford, W. G. S. Vinning, J. Kameda, Y. Hayato, L. Ludovici, S. Murphy, N. Yershov, M. Ishitsuka, C. Giganti, S. Kuribayashi, J. R. Wilson, C. Jesús-Valls, Alexander Finch, S. Nakayama, Masayuki Nakahata, C. Pidcott, W. Shorrock, Kevin Scott McFarland, T. Radermacher, M. Posiadala-Zezula, Robert Wilson, T. Maruyama, Sy Suzuki, T. Wachala, M. Yu, S. Moriyama, Y. Seiya, T. V. Ngoc, M. Antonova, C. Barry, Y. Uchida, C. Checchia, T. Yano, H. Sobel, T. Koga, R.P. Kurjata, G. Collazuol, T. S. Nonnenmacher, Mark Scott, T. Yoshida, P. Hamacher-Baumann, S. R. Dennis, Y. Fujii, C. M. Schloesser, Jungsang Kim, A. D. Marino, A. Longhin, M. Friend, A. Shaykina, A. Blondel, M. Lamoureux, Masato Shiozawa, A. Takeda, B. Jamieson, A. Zalewska, A. C. Kaboth, N. Dokania, G. A. Fiorentini, S. R. Johnson, T. Golan, S. Emery-Schrenk, J. Holeczek, S. Zsoldos, A. Pritchard, V. Palladino, A. Shvartsman, T. Kobayashi, G. C. Penn, T. Sekiguchi, D. Bravo Berguño, W. Uno, Ahmed Ali, C. Pistillo, C. Riccio, Pablo Fernandez, A. Dabrowska, M. B. Smy, A. Kostin, B. A. Popov, C. Metelko, D. Coplowe, T. Dealtry, S. Bhadra, L. Cook, G.D. Barr, M. Jakkapu, D. Vargas, Xiao-yan Li, J. Dumarchez, J. Schwehr, M. Hartz, A. Bravar, S. Dolan, T. Ishii, C. Densham, A. Cudd, Y. Yamada, H. Kubo, M. J. Wilking, P. Jonsson, S. B. Boyd, S. Roth, Keigo Nakamura, L. Labarga, K. Fusshoeller, K. Gameil, J. Morrison, W. C. Parker, A. Zykova, M. Pavin, S. J. Jenkins, Gareth J. Barker, D. G. Payne, A. Nakamura, Kate Scholberg, J. P. Coleman, F. Shaker, T. Tsukamoto, H. K. Tanaka, J. F. Martin, M. Tzanov, G. Zarnecki, A. Rychter, J. Kisiel, K. Matsushita, A. Hiramoto, A. K. Ichikawa, M. Buizza Avanzini, L. L. Kormos, T. Hasegawa, D. Cherdack, T. Campbell, S. Valder, K. Abe, Y. Kataoka, G. Pintaudi, C. McGrew, A. Gorin, L. Koch, C. Andreopoulos, T. Vladisavljevic, Thorsten Lux, T. Lindner, T. Kikawa, S. Suvorov, R. P. Litchfield, F. Bench, T. Kajita, M. Lawe, M. Kabirnezhad, A. T. Suzuki, Y. Nagai, C. K. Jung, Akitaka Ariga, T. Hayashino, R. Fukuda, E. Mazzucato, Y. Asada, Oleg Mineev, T. Nakadaira, Shigeki Aoki, M. Ziembicki, Yufeng Wang, M. Hogan, V. Matveev, T. Ishida, T. Odagawa, K. Mavrokoridis, A. Konaka, A. Bubak, H. A. Tanaka, K. Iwamoto, Jaroslaw Pasternak, Y. Awataguchi, Marco Laveder, Patrick Dunne, Jan T. Sobczyk, S. Manly, P. F. Denner, C. Francois, A. Minamino, M. Malek, Shuji Tanaka, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), T2K, Science and Technology Facilities Council (STFC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Ministerio de Economía y Competitividad (España), Abe, K., Akutsu, R., Ali, A., Alt, C., Andreopoulos, C., Anthony, L., Antonova, M., Aoki, S., Ariga, A., Asada, Y., Ashida, Y., Atkin, E. T., Awataguchi, Y., Ban, S., Barbi, M., Barker, G. J., Barr, G., Barrow, D., Barry, C., Batkiewicz-Kwasniak, M., Beloshapkin, A., Bench, F., Berardi, V, Berkman, S., Berns, L., Bhadra, S., Bienstock, S., Blondel, A., Bolognesi, S., Bourguille, B., Boyd, S. B., Brailsford, D., Bravar, A., Bravo Berguno, D., Bronner, C., Bubak, A., Avanzini, M. Buizza, Calcutt, J., Campbell, T., Cao, S., Cartwright, S. L., Catanesi, M. G., Cervera, A., Chappell, A., Checchia, C., Cherdack, D., Chikuma, N., Christodoulou, G., Coleman, J., Collazuol, G., Cook, L., Coplowe, D., Cudd, A., Dabrowska, A., De Rosa, G., Dealtry, T., Denner, P. F., Dennis, S. R., Densham, C., Di Lodovico, F., Dokania, N., Dolan, S., Doyle, T. A., Drapier, O., Dumarchez, J., Dunne, P., Eklund, L., Emery-Schrenk, S., Ereditato, A., Fernandez, P., Feusels, T., Finch, A. J., Fiorentini, G. A., Fiorillo, G., Francois, C., Friend, M., Fujii, Y., Fujita, R., Fukuda, D., Fukuda, R., Fukuda, Y., Fusshoeller, K., Gameil, K., Giganti, C., Golan, T., Gonin, M., Gorin, A., Guigue, M., Hadley, D. R., Haigh, J. T., Hamacher-Baumann, P., Hartz, M., Hasegawa, T., Hastings, N. C., Hayashino, T., Hayato, Y., Hiramoto, A., Hogan, M., Holeczek, J., Van, N. T. Hong, Iacob, F., Ichikawa, A. K., Ikeda, M., Ishida, T., Ishii, T., Ishitsuka, M., Iwamoto, K., Izmaylov, A., Jakkapu, M., Jamieson, B., Jenkins, S. J., Jesus-Valls, C., Jiang, M., Johnson, S., Jonsson, P., Jung, C. K., Kabirnezhad, M., Kaboth, A. C., Kajita, T., Kakuno, H., Kameda, J., Karlen, D., Kasetti, S. P., Kataoka, Y., Katori, T., Kato, Y., Kearns, E., Khabibullin, M., Khotjantsev, A., Kikawa, T., Kim, H., Kim, J., King, S., Kisiel, J., Knight, A., Knox, A., Kobayashi, T., Koch, L., Koga, T., Konaka, A., Kormos, L. L., Koshio, Y., Kostin, A., Kowalik, K., Kubo, H., Kudenko, Y., Kukita, N., Kuribayashi, S., Kurjata, R., Kutter, T., Kuze, M., Labarga, L., Lagoda, J., Lamoureux, M., Laveder, M., Lawe, M., Licciardi, M., Lindner, T., Litcheld, R. P., Liu, S. L., Li, X., Longhin, A., Ludovici, L., Lu, X., Lux, T., Nascimento Machado, L., Magaletti, L., Mahn, K., Malek, M., Manly, S., Maret, L., Marino, A. D., Marti-Magro, L., Martin, J. F., Maruyama, T., Matsubara, T., Matsushita, K., Matveev, V, Mavrokoridis, K., Mazzucato, E., Mccarthy, M., Mccauley, N., Mcfarland, K. S., Mcgrew, C., Mefodiev, A., Metelko, C., Mezzetto, M., Minamino, A., Mineev, O., Mine, S., Miura, M., Bueno, L. Molina, Moriyama, S., Morrison, J., Mueller, Th A., Munteanu, L., Murphy, S., Nagai, Y., Nakadaira, T., Nakahata, M., Nakajima, Y., Nakamura, A., Nakamura, K. G., Nakamura, K., Nakayama, S., Nakaya, T., Nakayoshi, K., Nantais, C., Ngoc, T., V, Niewczas, K., Nishikawa, K., Nishimura, Y., Nonnenmacher, T. S., Nova, F., Novella, P., Nowak, J., Nugent, J. C., O'Keeffe, H. M., O'Sullivan, L., Odagawa, T., Okumura, K., Okusawa, T., Oser, S. M., Owen, R. A., Oyama, Y., Palladino, V, Palomino, J. L., Paolone, V, Parker, W. C., Pasternak, J., Paudyal, P., Pavin, M., Payne, D., Penn, G. C., Pickering, L., Pidcott, C., Pintaudi, G., Guerra, E. S. Pinzon, Pistillo, C., Popov, B., Porwit, K., Posiadala-Zezula, M., Pritchard, A., Quilain, B., Radermacher, T., Radicioni, E., Radics, B., Rato, P. N., Reinherz-Aronis, E., Riccio, C., Rondio, E., Roth, S., Rubbia, A., Ruggeri, A. C., Ruggles, C. A., Rychter, A., Sakashita, K., Sanchez, F., Schloesser, C. M., Scholberg, K., Schwehr, J., Scott, M., Seiya, Y., Sekiguchi, T., Sekiya, H., Sgalaberna, D., Shah, R., Shaikhiev, A., Shaker, F., Shaykina, A., Shiozawa, M., Shorrock, W., Shvartsman, A., Smirnov, A., Smy, M., Sobczyk, J. T., Sobel, H., Soler, F. J. P., Sonoda, Y., Steinmann, J., Suvorov, S., Suzuki, A., Suzuki, S. Y., Suzuki, Y., Sztuc, A. A., Tada, M., Tajima, M., Takeda, A., Takeuchi, Y., Tanaka, H. K., Tanaka, H. A., Tanaka, S., Thompson, L. F., Toki, W., Touramanis, C., Towstego, T., Tsui, K. M., Tsukamoto, T., Tzanov, M., Uchida, Y., Uno, W., Vagins, M., Valder, S., Vallari, Z., Vargas, D., Vasseur, G., Vilela, C., Vinning, W. G. S., Vladisavljevic, T., Volkov, V. V., Wachala, T., Walker, J., Walsh, J. G., Wang, Y., Wark, D., Wascko, M. O., Weber, A., Wendell, R., Wilking, M. J., Wilkinson, C., Wilson, J. R., Wilson, R. J., Wood, K., Wret, C., Yamada, Y., Yamamoto, K., Yanagisawa, C., Yang, G., Yano, T., Yasutome, K., Yen, S., Yershov, N., Yokoyama, M., Yoshida, T., Yu, M., Zalewska, A., Zalipska, J., Zaremba, K., Zarnecki, G., Ziembicki, M., Zimmerman, E. D., Zito, M., Zsoldos, S., and Zykova, A.
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muon antineutrino beam ,General Physics and Astronomy ,antineutrino/mu: secondary beam ,KAMIOKANDE ,antineutrino/e: particle identification ,01 natural sciences ,09 Engineering ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,secondary beam [neutrino/mu] ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,neutrino/e: particle identification ,QC ,Physics ,02 Physical Sciences ,J-PARC Lab ,T2K experiment ,electron antineutrino ,T2K Collaboration ,kinematics ,Physical Sciences ,Particle Physics - Experiment ,T2K experiment in an accelerator-produced ,General Physics ,530 Physics ,Physics, Multidisciplinary ,FOS: Physical sciences ,particle identification [antineutrino/e] ,Neutrino beam ,secondary beam [antineutrino/mu] ,Physics::Geophysics ,Nuclear physics ,0103 physical sciences ,mixing ,ddc:530 ,010306 general physics ,01 Mathematical Sciences ,Muon ,Science & Technology ,particle identification [neutrino/e] ,hep-ex ,background ,neutrino/mu: secondary beam ,antineutrino: oscillation ,oscillation [antineutrino] ,Elementary Particles and Fields ,High Energy Physics::Experiment ,PMNS ,Electron neutrino ,Beam (structure) ,Free parameter ,experimental results - Abstract
Electron antineutrino appearance is measured by the T2K experiment in an accelerator-produced antineutrino beam, using additional neutrino beam operation to constrain parameters of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix. T2K observes 15 candidate electron antineutrino events with a background expectation of 9.3 events. Including information from the kinematic distribution of observed events, the hypothesis of no electron antineutrino appearance is disfavored with a significance of 2.40 σ and no discrepancy between data and PMNS predictions is found. A complementary analysis that introduces an additional free parameter which allows non-PMNS values of electron neutrino and antineutrino appearance also finds no discrepancy between data and PMNS predictions., Physical Review Letters, 124 (16), ISSN:0031-9007, ISSN:1079-7114
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- 2019
31. Electroluminescence collection cell as a readout for a high energy resolution Xenon gas TPC
- Author
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S. Tanaka, Hiroyuki Sekiya, K. Ueshima, Y. Ishiyama, S. Yanagita, S. Ban, Kentaro Miuchi, S. Akiyama, K. Nakamura, M. Hirose, Tsuyoshi Nakaya, A. Minamino, and A. K. Ichikawa
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Nuclear and High Energy Physics ,Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,Q value ,FOS: Physical sciences ,chemistry.chemical_element ,01 natural sciences ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,Optics ,Xenon ,Double beta decay ,0103 physical sciences ,010306 general physics ,Instrumentation ,Physics ,Scintillation ,Time projection chamber ,010308 nuclear & particles physics ,business.industry ,Detector ,Instrumentation and Detectors (physics.ins-det) ,chemistry ,Scintillation counter ,High Energy Physics::Experiment ,business ,Bar (unit) - Abstract
AXEL is a high pressure xenon gas TPC detector being developed for neutrinoless double-beta decay search. We use the proportional scintillation mode with a new electroluminescence light detection system to achieve high energy resolution in a large detector. The detector also has tracking capabilities, which enable significant background rejection. To demonstrate our detection technique, we constructed a 10L prototype detector filled with up to 10bar xenon gas. The FWHM energy resolution obtained by the prototype detector is 4.0 $\pm$ 0.30 $\%$ at 122 keV, which corresponds to 0.9 ~ 2.0 % when extrapolated to the Q value of the $0\nu\beta\beta$ decay of $^{136}$Xe., Comment: 10 pages
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- 2017
32. Dark matter search using charge amplification in liquid xenon
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Hiroyuki Sekiya
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Physics ,Xenon ,chemistry ,Dark matter ,chemistry.chemical_element ,Charge (physics) ,Atomic physics - Published
- 2018
33. Measurement of radon concentration in super-Kamiokande’s buffer gas
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Shigeki Tasaka, Y. Takeuchi, Masayuki Nakahata, Hiroyuki Sekiya, Yuuki Nakano, M. Matsubara, and R. A. Wendell
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Physics ,Nuclear and High Energy Physics ,Physics - Instrumentation and Detectors ,010308 nuclear & particles physics ,Buffer gas ,Detector ,Analytical chemistry ,FOS: Physical sciences ,chemistry.chemical_element ,Radon ,Instrumentation and Detectors (physics.ins-det) ,Contamination ,01 natural sciences ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,chemistry ,Activated charcoal ,0103 physical sciences ,Calibration ,010306 general physics ,Super-Kamiokande ,Instrumentation ,Carbon - Abstract
To precisely measure radon concentrations in purified air supplied to the Super-Kamiokande detector as a buffer gas, we have developed a highly sensitive radon detector with an intrinsic background as low as 0.33$\pm$0.07 mBq/m$^{3}$. In this article, we discuss the construction and calibration of this detector as well as results of its application to the measurement and monitoring of the buffer gas layer above Super-Kamiokande. In March 2013, the chilled activated charcoal system used to remove radon in the input buffer gas was upgraded. After this improvement, a dramatic reduction in the radon concentration of the supply gas down to 0.08 $\pm$ 0.07 mBq/m$^{3}$. Additionally, the Rn concentration of the in-situ buffer gas has been measured 28.8$\pm$1.7 mBq/m$^{3}$ using the new radon detector. Based on these measurements we have determined that the dominant source of Rn in the buffer gas arises from contamination from the Super-Kamiokande tank itself., Comment: 15 pages, 9 figures (accepted for publication in Nuclear Inst. and Methods in Physics Research, A)
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- 2017
34. Detectability of galactic supernova neutrinos coherently scattered on xenon nuclei in XMASS
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Y. Takeuchi, K.B. Lee, Shogo Nakamura, N. Oka, R. Fujita, Hiroyuki Sekiya, Y. Fukuda, Shigeki Tasaka, Nam Young Kim, Kazuhiko Nakagawa, K. Martens, Masayuki Nakahata, Masaki Yamashita, Kentaro Miuchi, Y. Onishi, Koichi Ichimura, Hiroshi Ogawa, Ko Abe, K. Hosokawa, Y. D. Kim, I. Murayama, B.S. Yang, Yoshihiro Suzuki, Katsuki Hiraide, Atsushi Takeda, Yasuhiro Kishimoto, K. Fujii, Jing Liu, Jong-Man Lee, K. Kobayashi, Lee Min-Kie, T. Norita, Kimiaki Masuda, K. Nishijima, Shigetaka Moriyama, M. Kobayashi, H. Takiya, Yoshitaka Itow, Yong Hamb Kim, R. Kegasa, O. Takachio, and H. Uchida
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Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Dark matter ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,01 natural sciences ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,0103 physical sciences ,Nuclear Experiment (nucl-ex) ,010306 general physics ,Nuclear Experiment ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,Stellar evolution ,Astrophysics::Galaxy Astrophysics ,High Energy Astrophysical Phenomena (astro-ph.HE) ,Betelgeuse ,Astroparticle physics ,Physics ,010308 nuclear & particles physics ,Astronomy ,Astronomy and Astrophysics ,Instrumentation and Detectors (physics.ins-det) ,Solar neutrino problem ,Supernova ,Neutrino detector ,Neutrino ,Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
The coherent elastic neutrino-nucleus scattering (CEvNS) plays a crucial role at the final evolution of stars. The detection of it would be of importance in astroparticle physics. Among all available neutrino sources, galactic supernovae give the highest neutrino flux in the MeV range. Among all liquid xenon dark matter experiments, XMASS has the largest sensitive volume and light yield. The possibility to detect galactic supernova via the CEvNS-process on xenon nuclei in the current XMASS detector was investigated. The total number of events integrated in about 18 seconds after the explosion of a supernova 10~kpc away from the Earth was expected to be from 3.5 to 21.1, depending on the supernova model used to predict the neutrino flux, while the number of background events in the same time window was measured to be negligible. All lead to very high possibility to detect CEvNS experimentally for the first time utilizing the combination of galactic supernovae and the XMASS detector. In case of a supernova explosion as close as Betelgeuse, the total observable events can be more than ten thousand, making it possible to distinguish different supernova models by examining the evolution of neutrino event rate in XMASS., Comment: 6 pages, 5 figures
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- 2017
35. AXEL—a high pressure xenon gas TPC for neutrinoless double beta decay search
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S. Ban, A. K. Ichikawa, K. Ueshima, A. Minamino, K. Nakamura, Saori Yanagita, Tsuyoshi Nakaya, M. Hirose, Kentaro Miuchi, Shunsuke Tanaka, and Hiroyuki Sekiya
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Physics ,Nuclear and High Energy Physics ,Photon ,Time projection chamber ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Detector ,chemistry.chemical_element ,Electroluminescence ,01 natural sciences ,Nuclear physics ,Xenon ,chemistry ,Double beta decay ,Electric field ,0103 physical sciences ,010306 general physics ,Instrumentation ,Bar (unit) - Abstract
To search for neutrinoless double beta decay, we have started developing a high pressure xenon gas time projection chamber as the AXEL (A Xenon ElectroLuminescence detector) project since 2014. We proposed a new scheme to measure energy deposit using electroluminescence lights to achieve high energy resolution, large mass and strong background rejection power. Important performances of compositions of our new readout scheme are shown: electric field simulation, VUV sensitivity of MPPC in high pressure gaseous xenon, response of MPPC for large amount of photons. To demonstrate as a whole system, we constructed a small prototype detector using 64 MPPCs filled with 4 bar xenon gas. Result of measurement with a 57Co gamma-ray source are shown.
- Published
- 2017
36. Cultivation of Late-Planted Soybean with Narrow-Row and Dense-Sowing using Chisel Plow and Grain Drill to Manage Reclaimed Farmland Damaged by the Tsunami after The Great East Japan Earthquake in Miyagi Prefecture
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Ryuji Otani, Tomoki Takahashi, Yoshisada Nagasaka, Mizuhiko Nishida, Hisanobu Hayashi, Hidefumi Saito, Katsuyuki Katayama, Toshinori Matsunami, Hideaki Kanmuri, Yoshiya Shinoto, Mari Namikawa, Soichi Nakayama, and Hiroyuki Sekiya
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0106 biological sciences ,Drill ,Sowing ,04 agricultural and veterinary sciences ,01 natural sciences ,Agronomy ,040103 agronomy & agriculture ,Genetics ,0401 agriculture, forestry, and fisheries ,Environmental science ,Chisel plow ,Agronomy and Crop Science ,010606 plant biology & botany ,Food Science - Published
- 2017
37. Applicability of Dry Direct-seeding Rice Cultivation using Plowing and Compaction Based on Soil Conditions of Paddy Rice Fields
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Ryuji Otani, Hideaki Kanmuri, and Hiroyuki Sekiya
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Fluid Flow and Transfer Processes ,business.product_category ,Compaction ,02 engineering and technology ,Building and Construction ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Plough ,Agronomy ,Environmental science ,Paddy field ,Seeding ,0210 nano-technology ,business - Published
- 2017
38. Search for heavy neutrinos with the T2K near detector ND280
- Author
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C. Bronner, James R. Wilson, A. Bravar, S. King, A. Minamino, S. Ban, Robert Wilson, K. Yasutome, K. Nakamura, H. Kubo, P. Novella, P. Jonsson, K. Kowalik, E. Rondio, N. Chikuma, N. McCauley, C. M. Nantais, M. M. Khabibullin, A. N. Khotjantsev, Y. Nakajima, P. P. Koller, Federico Sanchez, D. R. Hadley, Y. Yamada, D. G. Payne, T. Wachala, A. Nakamura, L. Labarga, D. Sgalaberna, S. B. Boyd, S. Suvorov, R. P. Litchfield, K. Porwit, L. Molina Bueno, T. Inoue, R. Shah, Shin Sasaki, Jung-Hyun Kim, S. R. Johnson, G. De Rosa, G. A. Fiorentini, G.D. Barr, M. McCarthy, M. Malek, E. Scantamburlo, C. Barry, B. Radics, Xianguo Lu, D. Shaw, R.P. Kurjata, R. M. Berner, P. Lasorak, Patrick Dunne, K. Zaremba, S. Yen, R. A. Owen, F. Hosomi, Vladimir Volkov, M. Batkiewicz-Kwasniak, J. Morrison, S. Nakayama, A. Blondel, B. Bourguille, André Rubbia, A. Mefodiev, Lester D.R. Thompson, M. Mezzetto, Leïla Haegel, C. Pistillo, A. Dabrowska, K. Niewczas, W. Toki, J. Holeczek, Yusuke Suda, A. K. Ichikawa, G. Zarnecki, L. Magaletti, M. Ikeda, K. Nakayoshi, M. Vagins, M. Barbi, Y. Seiya, T. Thakore, C. Wret, Kimihiro Okumura, J. Steinmann, M. Buizza Avanzini, S. Mine, W. Uno, F. Di Lodovico, S. Dolan, M. Tada, C. Densham, F. Bench, A. Cudd, C. Metelko, A. Knight, S. Bolognesi, A. Rychter, J. L. Palomino, S. Manly, P. F. Denner, Hyun-Chul Kim, Todd D. Stewart, M. J. Wilking, Yu. G. Kudenko, K. E. Duffy, N. C. Hastings, A. Izmaylov, S. V. Cao, H. M. O'Keeffe, M. Gonin, Y. Nishimura, Akitaka Ariga, K. M. Tsui, T. Kajita, M. Lawe, P. Martins, H.A. Tanaka, S. Murphy, Y. Sonoda, J. Zalipska, S. M. Oser, T. Maruyama, M. Licciardi, T. Feusels, F. Iacob, M. Ishitsuka, Y. Oyama, K. Gameil, T. Lou, L. Berns, Shigeki Aoki, M. G. Catanesi, C. Yanagisawa, Y. Kato, M. O. Wascko, E. Radicioni, E. Kearns, B. Quilain, Y. Azuma, Sy Suzuki, M. Kabirnezhad, J. A. Nowak, Laura Gutermuth Anthony, A. Chappell, V. Matveev, Alexander Finch, H. Sobel, T. S. Nonnenmacher, T. Matsubara, D. L. Wark, J. T. Haigh, C. Jesus, T. Okusawa, C. Wilkinson, M. Antonova, Ahmed Ali, A. T. Suzuki, Y. Nagai, M. Lamoureux, B. Rossi, M. B. Smy, S. Yamasu, B. Jamieson, A. Zalewska, T. Golan, T. Radermacher, M. Yu, S. Zsoldos, C. K. Jung, C. Touramanis, Jan T. Sobczyk, M. Jiang, Antonio Ereditato, A. Pritchard, V. Palladino, K. Iwamoto, Xiao-yan Li, T. Hayashino, N. Yershov, A. A. Sztuc, E. S. Pinzon Guerra, T. Sekiguchi, C. Riccio, S. Emery-Schrenk, T. Yano, Pablo Fernandez, R. Wendell, Marco Laveder, Kevin Scott McFarland, T. Dealtry, C. Francois, K. Mavrokoridis, A. D. Marino, D. Vargas, A. Konaka, J. Kameda, J. Dumarchez, J. Schwehr, A. Hiramoto, T. Nakadaira, C. Giganti, T. Hasegawa, Ryuji Tamura, T. Kobayashi, C. Vilela, M. Miura, R. Tacik, D. Fukuda, T. Campbell, Y. Fujii, Z. J. Liptak, P. Paudyal, M. Hogan, Y. Awataguchi, E. Mazzucato, F. Gizzarelli, J. P. Lopez, A. Takeda, A. C. Kaboth, T. Ishida, A. Zykova, Oleg Mineev, L. O'Sullivan, S. Berkman, S. L. Cartwright, M. Ziembicki, O. Drapier, R. A. Intonti, L. L. Kormos, Yufeng Wang, Y. Takeuchi, L. Maret, P. N. Ratoff, T. Kutter, Teppei Katori, Hiroyuki Sekiya, R. Fujita, Kendall Mahn, P. Hamacher-Baumann, N. Dokania, Alexander N. Smirnov, Th. A. Mueller, R. Akutsu, G. Fiorillo, L. Pickering, J. Lagoda, Yoshihiro Suzuki, A. Knox, Y. Hayato, L. Ludovici, Keigo Nakamura, T. Vladisavljevic, Thorsten Lux, T. Lindner, W. Oryszczak, D. Cherdack, K. Abe, C. McGrew, L. Koch, C. Andreopoulos, V. Paolone, Z. Vallari, W. Y. Ma, Gareth J. Barker, E. D. Zimmerman, J. P. Coleman, A. Cervera, K. Yamamoto, F. Shaker, K. Nishikawa, Vincenzo Berardi, Alan Cosimo Ruggeri, D. Coplowe, T. Ishii, S. Bienstock, Masashi Yokoyama, N. T. Hong Van, G. Vasseur, J. Walker, D. Karlen, Tsuyoshi Nakaya, Masato Shiozawa, S. Moriyama, S. Bhadra, M. Hartz, A. Shaikhiev, T. Koga, E. Reinherz-Aronis, P. Stowell, M. Zito, Hidekazu Kakuno, G. Yang, A. C. Weber, A. Longhin, M. Friend, A. Shaykina, M. Posiadala-Zezula, G. Collazuol, Mark Scott, M. Pavin, T. Yoshida, T. Tsukamoto, Y. Ashida, Y. Fukuda, G. Christodoulou, Y. Nakanishi, K. Sakashita, M. Kuze, B. A. Popov, S. Roth, Masayuki Nakahata, C. Pidcott, Y. Uchida, C. Checchia, W. C. Parker, Kate Scholberg, H. K. Tanaka, J. F. Martin, M. Tzanov, J. Kisiel, J. Calcutt, Yusuke Koshio, D. Brailsford, S. R. Dennis, C. M. Schloesser, UAM. Departamento de Física Teórica, Abe, K., Akutsu, R., Ali, A., Andreopoulos, C., Anthony, L., Antonova, M., Aoki, S., Ariga, A., Ashida, Y., Awataguchi, Y., Azuma, Y., Ban, S., Barbi, M., Barker, G. J., Barr, G., Barry, C., Batkiewicz-Kwasniak, M., Bench, F., Berardi, V., Berkman, S., Berner, R. M., Berns, L., Bhadra, S., Bienstock, S., Blondel, A., Bolognesi, S., Bourguille, B., Boyd, S. B., Brailsford, D., Bravar, A., Bronner, C., Buizza Avanzini, M., Calcutt, J., Campbell, T., Cao, S., Cartwright, S. L., Catanesi, M. G., Cervera, A., Chappell, A., Checchia, C., Cherdack, D., Chikuma, N., Christodoulou, G., Coleman, J., Collazuol, G., Coplowe, D., Cudd, A., Dabrowska, A., DE ROSA, Gianfranca, Dealtry, T., Denner, P. F., Dennis, S. R., Densham, C., Di Lodovico, F., Dokania, N., Dolan, S., Drapier, O., Duffy, K. E., Dumarchez, J., Dunne, P., Emery-Schrenk, S., Ereditato, A., Fernandez, P., Feusels, T., Finch, A. J., Fiorentini, G. A., Fiorillo, Giuliana, Francois, C., Friend, M., Fujii, Y., Fujita, R., Fukuda, D., Fukuda, Y., Gameil, K., Giganti, C., Gizzarelli, F., Golan, T., Gonin, M., Hadley, D. R., Haegel, L., Haigh, J. T., Hamacher-Baumann, P., Hartz, M., Hasegawa, T., Hastings, N. C., Hayashino, T., Hayato, Y., Hiramoto, A., Hogan, M., Holeczek, J., Hong Van, N. T., Hosomi, F., Iacob, F., Ichikawa, A. K., Ikeda, M., Inoue, T., Intonti, R. A., Ishida, T., Ishii, T., Ishitsuka, M., Iwamoto, K., Izmaylov, A., Jamieson, B., Jesus, C., Jiang, M., Johnson, S., Jonsson, P., Jung, C. K., Kabirnezhad, M., Kaboth, A. C., Kajita, T., Kakuno, H., Kameda, J., Karlen, D., Katori, T., Kato, Y., Kearns, E., Khabibullin, M., Khotjantsev, A., Kim, H., Kim, J., King, S., Kisiel, J., Knight, A., Knox, A., Kobayashi, T., Koch, L., Koga, T., Koller, P. P., Konaka, A., Kormos, L. L., Koshio, Y., Kowalik, K., Kubo, H., Kudenko, Y., Kurjata, R., Kutter, T., Kuze, M., Labarga, L., Lagoda, J., Lamoureux, M., Lasorak, P., Laveder, M., Lawe, M., Licciardi, M., Lindner, T., Liptak, Z. J., Litchfield, R. P., Li, X., Longhin, A., Lopez, J. P., Lou, T., Ludovici, L., Lu, X., Lux, T., Magaletti, L., Mahn, K., Malek, M., Manly, S., Maret, L., Marino, A. D., Martin, J. F., Martins, P., Maruyama, T., Matsubara, T., Matveev, V., Mavrokoridis, K., Ma, W. Y., Mazzucato, E., Mccarthy, M., Mccauley, N., Mcfarland, K. S., Mcgrew, C., Mefodiev, A., Metelko, C., Mezzetto, M., Minamino, A., Mineev, O., Mine, S., Miura, M., Molina Bueno, L., Moriyama, S., Morrison, J., Mueller, T. A., Murphy, S., Nagai, Y., Nakadaira, T., Nakahata, M., Nakajima, Y., Nakamura, A., Nakamura, K. G., Nakamura, K., Nakamura, K. D., Nakanishi, Y., Nakayama, S., Nakaya, T., Nakayoshi, K., Nantais, C., Niewczas, K., Nishikawa, K., Nishimura, Y., Nonnenmacher, T. S., Novella, P., Nowak, J., O'Keeffe, H. M., O'Sullivan, L., Okumura, K., Okusawa, T., Oryszczak, W., Oser, S. M., Owen, R. A., Oyama, Y., Palladino, Vittorio, Palomino, J. L., Paolone, V., Parker, W. C., Paudyal, P., Pavin, M., Payne, D., Pickering, L., Pidcott, C., Pinzon Guerra, E. S., Pistillo, C., Popov, B., Porwit, K., Posiadala-Zezula, M., Pritchard, A., Quilain, B., Radermacher, T., Radicioni, E., Radics, B., Ratoff, P. N., Reinherz-Aronis, E., Riccio, C., Rondio, E., Rossi, B., Roth, S., Rubbia, A., Ruggeri, ALAN COSIMO, Rychter, A., Sakashita, K., Sanchez, F., Sasaki, S., Scantamburlo, E., Schloesser, C. M., Scholberg, K., Schwehr, J., Scott, M., Seiya, Y., Sekiguchi, T., Sekiya, H., Sgalaberna, D., Shah, R., Shaikhiev, A., Shaker, F., Shaw, D., Shaykina, A., Shiozawa, M., Smirnov, A., Smy, M., Sobczyk, J. T., Sobel, H., Sonoda, Y., Steinmann, J., Stewart, T., Stowell, P., Suda, Y., Suvorov, S., Suzuki, A., Suzuki, S. Y., Suzuki, Y., Sztuc, A. A., Tacik, R., Tada, M., Takeda, A., Takeuchi, Y., Tamura, R., Tanaka, H. K., Tanaka, H. A., Thakore, T., Thompson, L. F., Toki, W., Touramanis, C., Tsui, K. M., Tsukamoto, T., Tzanov, M., Uchida, Y., Uno, W., Vagins, M., Vallari, Z., Vargas, D., Vasseur, G., Vilela, C., Vladisavljevic, T., Volkov, V. V., Wachala, T., Walker, J., Wang, Y., Wark, D., Wascko, M. O., Weber, A., Wendell, R., Wilking, M. J., Wilkinson, C., Wilson, J. R., Wilson, R. J., Wret, C., Yamada, Y., Yamamoto, K., Yamasu, S., Yanagisawa, C., Yang, G., Yano, T., Yasutome, K., Yen, S., Yershov, N., Yokoyama, M., Yoshida, T., Yu, M., Zalewska, A., Zalipska, J., Zaremba, K., Zarnecki, G., Ziembicki, M., Zimmerman, E. D., Zito, M., Zsoldos, S., Zykova, A., Science and Technology Facilities Council (STFC), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), T2K, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Ministerio de Ciencia, Innovación y Universidades (España), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
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decay modes [neutrino] ,GENERAL-THEORY ,mixing [neutrino] ,Physics::Instrumentation and Detectors ,neutrino: heavy: search for ,KAMIOKANDE ,01 natural sciences ,High Energy Physics - Experiment ,Physics, Particles & Fields ,High Energy Physics - Experiment (hep-ex) ,LIMITS ,secondary beam [neutrino/mu] ,neutrino: decay modes ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Particle Physics Experiments ,neutrino: mass ,media_common ,Physics ,VMSM ,J-PARC Lab ,statistical analysis: Bayesian ,K: decay ,heavy neutrinos, T2K Experiment, Time Projection Chambers ,mass dependence ,General theory ,T2K Experiment ,Time Projection Chambers ,Physical Sciences ,Christian ministry ,data analysis method ,FOS: Physical sciences ,Library science ,heavy: search for [neutrino] ,Astronomy & Astrophysics ,Bayesian [statistical analysis] ,near detector ,0103 physical sciences ,DARK-MATTER ,media_common.cataloged_instance ,ddc:530 ,Early career ,European union ,S077A00 ,010306 general physics ,S077A01 ,heavy neutrinos ,Science & Technology ,010308 nuclear & particles physics ,background ,hep-ex ,High Energy Physics::Phenomenology ,Física ,neutrino/mu: secondary beam ,time projection chamber ,decay [K] ,mass [neutrino] ,Hypothetical particle physics models Particle phenomena ,High Energy Physics::Experiment ,neutrino: mixing ,statistical ,experimental results - Abstract
This paper reports on the search for heavy neutrinos with masses in the range 140, Physical Review D, 100 (5), ISSN:1550-7998, ISSN:0556-2821, ISSN:1550-2368
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- 2019
39. Evaluation of Gadolinium's Action on Water Cherenkov Detector Systems with EGADS
- Author
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Hirokazu Ishino, M. Thiesse, R. Akutsu, L. H. V. Anthony, Y. Kato, C. Simpson, Y. Suda, I. Bandac, M. Ikeda, Kimihiro Okumura, Makoto Sakuda, K. Ito, A. L. Renshaw, M. Murdoch, Y. Takeuchi, Shinya Yamada, K. Bays, Jose L. Perez, S. Nakayama, N. McCauley, Y. Nakajima, Francesco Muto, G. Carminati, W. Y. Ma, T. Yokozawa, R. P. Litchfield, Yuuki Nakano, Lester D.R. Thompson, S. Locke, R. Yamaguchi, S. Hirota, P. Fernandez, G. Pronost, H. Zhang, Masayuki Nakahata, Y. Uchida, A. Goldsack, Shintaro Ito, A. A. Sztuc, Takaaki Mori, A. Cole, Hiroyuki Sekiya, J. Imber, W. R. Kropp, M. Vagins, M. B. Smy, Koh Ueno, A. Pritchard, Ll. Marti, F. Di Lodovico, Y. Okajima, S. V. Cao, Y. Nishimura, Jan Schuemann, J. Amey, Yasuhiro Kishimoto, P. Weatherly, B. Richards, Masashi Yokoyama, N. J. Griskevich, Yusuke Koshio, A. Orii, Masato Shiozawa, H. K. Tanaka, D. L. Wark, T. Yano, L. Labarga, A. Kibayashi, UAM. Departamento de Física Teórica, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)
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Nuclear and High Energy Physics ,Physics - Instrumentation and Detectors ,Proton decay ,Cherenkov detector ,Cherenkov counter: water ,Physics::Instrumentation and Detectors ,FOS: Physical sciences ,01 natural sciences ,law.invention ,Nuclear physics ,Gadolinium (Gd) ,law ,gadolinium: admixture ,0103 physical sciences ,n: detector ,Neutron ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,n: capture ,010306 general physics ,Instrumentation ,Cherenkov radiation ,detector: design ,EGADS ,Physics ,Range (particle radiation) ,010308 nuclear & particles physics ,Detector ,Física ,Instrumentation and Detectors (physics.ins-det) ,Charged particle ,efficiency ,Neutrino ,Large water Cherenkov (WC) detectors - Abstract
Artículo escrito por un elevado número de autores, sólo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiera, y los autores pertenecientes a la UAM, Used for both proton decay searches and neutrino physics, large water Cherenkov (WC) detectors have been very successful tools in particle physics. They are notable for their large masses and charged particle detection capabilities. While current WC detectors reconstruct charged particle tracks over a wide energy range, they cannot efficiently detect neutrons. Gadolinium (Gd) has the largest thermal neutron capture cross section of all stable nuclei and produces an 8 MeV gamma cascade that can be detected with high efficiency. Because of the many new physics opportunities that neutron tagging with a Gd salt dissolved in water would open up, a large-scale R&D program called EGADS was established to demonstrate this technique’s feasibility. EGADS features all the components of a WC detector, chiefly a 200-ton stainless steel water tank furnished with 240 photo-detectors, DAQ, and a water system that removes all impurities from water while keeping Gd in solution. In this paper we discuss the milestones towards demonstrating the feasibility of this novel technique, and the features of EGADS in detail, This work was supported by the JSPS KAKENHI Grant Numbers JP21224004, JP26000003, JP24103004 and JP17H06365. Funding support was provided by Kavli IPMU (WPI), the University of Tokyo and the US Department of Energy. We thank the “Consorcio Laboratorio Subterraneo de Canfranc” (Spain) and the Boulby Underground Research Laboratory and in particular the staff of the BUGS facility (UK) for supporting the low-background materials screening work. Some of us have been supported by funds from the European Union H2020-MSCA-RISE-GA872549-SK2HK, the Spanish Ministry of Science and Innovation (grant PGC2018-099388-B-100), the Science and Technology Facilities Council (STFC) and GridPP, UK, and the European Union’s H2020 -MSCA-RISE-2018 JENNIFER2 grant agreement no. 822070
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- 2019
40. Development of new radon monitoring systems in the Kamioka mine
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Shigeki Tasaka, M. Ikeda, Hiroyuki Sekiya, Guillaume Pronost, and T. Nakamura
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Physics ,Physics - Instrumentation and Detectors ,010308 nuclear & particles physics ,Detector ,chemistry.chemical_element ,FOS: Physical sciences ,General Physics and Astronomy ,Monitoring system ,Radon ,Instrumentation and Detectors (physics.ins-det) ,High sensitive ,01 natural sciences ,Measure (mathematics) ,Background level ,Nuclear physics ,Raspberry pi ,Low energy ,chemistry ,0103 physical sciences ,010306 general physics - Abstract
Radioactivity from radon is a major threat for high-precision low energy physics experiments like the ones in the Kamioka Mine. We developed a new high sensitive radon monitoring system and conducted systematic radon concentration measurements for the first time in Kamioka. The system consists of portable radon detectors with a capacity of 1 L and new electronics based on Raspberry Pi. These radon detectors measure the radon in air with electro-static collection and a PIN photodiode. We measured the absolute humidity dependence of the 1-L radon detector for air to be $C_{F} (A_{H}) = (12.86 \pm 0.40) - (1.66 \pm 0.19) \sqrt{A_{H}}$ $\mathrm{(counts/day)/(Bq/m^3)}$. The background level of the 1-L radon detector is $0.65\pm0.15$ (stat.) count/day. This corresponds to a detection limit of $\sim0.4$ Bq/m$^3$ in a one-day measurement. Data was collected for a period of more than one year with twenty one 1-L radon detectors in the Kamioka mine. They indicate seasonal and day-night variations in radon concentration within the mine. These results also allow us to confirm the stability of the new Raspberry Pi electronics., Comment: 21 pages, 22 figures, to be published in PTEP Erratum on 2019/03/06: Figures 15 and 16 were corrected, this doesn't change our conclusions
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- 2019
41. Development of a method for measuring rare earth elements in the environment for future experiments with gadolinium loaded detectors
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Shintaro Ito, T. Okada, Masayuki Nakahata, M. Ikeda, Yusuke Koshio, Y. Takaku, Yasuhiro Kishimoto, Yutaka Nakajima, Hiroyuki Sekiya, and Masayuki Harada
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Chelating resin ,Physics ,Physics - Instrumentation and Detectors ,010308 nuclear & particles physics ,Gadolinium ,Dark matter ,Detector ,Rare earth ,Analytical chemistry ,General Physics and Astronomy ,chemistry.chemical_element ,FOS: Physical sciences ,Instrumentation and Detectors (physics.ins-det) ,Mass spectrometry ,01 natural sciences ,River water ,chemistry ,0103 physical sciences ,Neutrino ,010306 general physics - Abstract
Demand to use gadolinium (Gd) in detectors is increasing in the field of elementary particle physics, especially neutrino measurements and dark matter searches. Large amounts of Gd are used in these experiments. Therefore, to access the impacts of Gd onto the environments, it is becoming important to measure the baseline concentrations of Gd in the environments. The measurement of the baseline concentrations, however, is not easy due to interferences by other elements. In this paper, a method for measuring the concentrations of rare earth elements including Gd is proposed. In the method, an inductively coupled plasma-mass spectrometry is utilized after collecting the dissolved elements in chelating resin. Results of the ability to detect anomalous concentrations of rare earth elements in river water samples in the Kamioka and Toyama areas are also reported., 10 pages, 5 figures
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- 2019
42. Measurement of the neutrino-oxygen neutral-current quasielastic cross section using atmospheric neutrinos at Super-Kamiokande
- Author
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E. Kearns, Masashi Yokoyama, T. Sugimoto, T. Towstego, T. Ishizuka, Y. Hayato, Tsuyoshi Nakaya, R. Akutsu, L. H. V. Anthony, C. W. Walter, F. Di Lodovico, C. Kachulis, T. Hayashino, C. K. Jung, Y. Kuno, K. Nishijima, A. Konaka, A. Minamino, N. McCauley, C. M. Nantais, Masato Shiozawa, Y. Choi, L. Ludovici, N. J. Griskevich, M. Vagins, M. Kuze, J. L. Raaf, Yusuke Koshio, Atsushi Takeda, T. Sekiguchi, P. de Perio, B. Bodur, V. Takhistov, Hiroyuki Sekiya, S. Molina Sedgwick, Soo-Bong Kim, Y. Fukuda, L. Wan, N. F. Calabria, Ke. Nakamura, Hirokazu Ishino, Y. Isobe, Y. Takeuchi, Lester D.R. Thompson, K. Martens, Y. Nishimura, A. T. Suzuki, K. Okamoto, Hiromasa Tanaka, M. Murdoch, J. Bian, C. Vilela, T. Tsukamoto, T. Okada, C. Xu, A. Pritchard, Makoto Hasegawa, W. R. Kropp, K. Sakashita, J. F. Martin, Takaaki Kajita, Yuichi Oyama, T. Nakadaira, M. Friend, M. Thiesse, G. De Rosa, C. Simpson, J. Imber, K. M. Tsui, Ahmed Ali, M. B. Smy, R. P. Litchfield, Seiko Hirota, Xiao-yan Li, G. Collazuol, Yuta Kato, T. Ishida, Rongkun Wang, T. Kikawa, M. Gonin, J. Xia, H. K. Tanaka, M. G. Catanesi, M. Ikeda, Makoto Sakuda, M. Miura, K. Frankiewicz, Yutaka Nakajima, Ll. Marti, K. Abe, J. L. Stone, Y. Okajima, K. Iyogi, J. Y. Kim, S. Mine, A. Orii, S. Cao, L. Labarga, Yoshihiro Suzuki, R. A. Wendell, M. J. Wilking, S. Berkman, J. L. Palomino, M. Hartz, K. Choi, Pablo Fernandez, C. Bronner, Shintaro Ito, R. A. Intonti, J. G. Learned, I. T. Lim, H. Miyabe, Kate Scholberg, H. Okazawa, S. Locke, S. Matsuno, B. Quilain, A. Takenaka, F. d. M. Blaszczyk, P. Weatherly, B. Richards, M. Koshiba, R. G. Park, Ko Okumura, Ke. Abe, K. Hagiwara, Yuuki Nakano, T. Mochizuki, Sara Sussman, J. Kameda, Th. A. Mueller, P. Mijakowski, Felix Iacob, J. S. Jang, Masaki Ishitsuka, M. O. Wascko, A. Goldsack, S. Nakayama, T. Yoshida, Song Chen, R. Tacik, D. Fukuda, K. S. Ganezer, E. Radicioni, John Hill, D. L. Wark, Y. Takahira, T. Yano, M. Mori, Y. Sonoda, Yoshitaka Itow, G. Pronost, T. Nakamura, M. Murrase, C. Yanagisawa, H. W. Sobel, Y. Ashida, K. Nakamura, S. Moriyama, G. Santucci, Masayuki Nakahata, Y. Uchida, T. Hasegawa, M. Jiang, Yasuhiro Kishimoto, Takashi Kobayashi, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Super-Kamiokande, Science and Technology Facilities Council (STFC), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), DE ROSA, Gianfranca, and Et, Al
- Subjects
Physics::Instrumentation and Detectors ,neutrino oxygen neutral current interaction ,Flux ,KAMIOKANDE ,7. Clean energy ,01 natural sciences ,neutrino: flux ,High Energy Physics - Experiment ,Physics, Particles & Fields ,High Energy Physics - Experiment (hep-ex) ,neutrino: atmosphere ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Particle Physics Experiments ,neutrino: supernova ,Nuclear Experiment ,Physics ,neutrino nucleon: inelastic scattering ,atmospheric neutrinos ,Supernova ,Physical Sciences ,quasi-elastic cross section ,Neutrino ,Nucleon ,channel cross section: measured ,neutrino oxygen neutral current interaction, quasi-elastic cross section, atmospheric neutrinos, SuperKamiokande experiment ,neutral current ,Cherenkov counter: water ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Astronomy & Astrophysics ,EVENTS ,Nuclear physics ,5/3 ,neutrino: spectrum ,SEARCH ,0103 physical sciences ,010306 general physics ,Cherenkov radiation ,Science & Technology ,Neutral current ,background ,010308 nuclear & particles physics ,Scattering ,scattering ,neutrino nucleus: interaction ,MU ,13. Climate action ,High Energy Physics::Experiment ,Super-Kamiokande ,oxygen ,SuperKamiokande experiment ,experimental results - Abstract
Neutral current (NC) interactions of atmospheric neutrinos on oxygen form one of the major backgrounds in the search for supernova relic neutrinos with water-based Cherenkov detectors. The NC channel is dominated by neutrino quasi-elastic (NCQE) scattering off nucleons inside $^{16}$O nuclei. In this paper we report the first measurement of NCQE cross section using atmospheric neutrinos at Super-Kamiokande (SK). The measurement used 2,778 live days of SK-IV data with a fiducial volume of 22.5 kiloton water. Within the visible energy window of 7.5-29.5 MeV, we observed $117$ events compared to the expected $71.9$ NCQE signal and $53.1$ background events. Weighted by the atmospheric neutrino spectrum from 160 MeV to 10 GeV, the flux averaged NCQE cross section is measured to be $(1.01\pm0.17(\text{stat.})^{+0.78}_{-0.30}(\text{sys.}))\times10^{-38}$ cm$^2$., Comment: 11 pages, 9 figures, submitted to PRD
- Published
- 2019
43. Search for event bursts in XMASS-I associated with gravitational-wave events
- Author
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K. Martens, Kentaro Miuchi, Motoki Kobayashi, Y. Takeuchi, Masayuki Nakahata, Shogo Nakamura, Masaki Yamashita, B. D. Xu, Nam Young Kim, H. Ogawa, K.B. Lee, K. Kanzawa, B. S. Yang, Atsushi Takeda, Kimiaki Masuda, N. Oka, Shigeki Tasaka, G. Kanzaki, Ken-Ichi Fushimi, Hiroyuki Sekiya, Y. Fukuda, Katsuki Hiraide, T. Suzuki, K. Abe, M. Miyasaka, Yeongduk Kim, Yoshihiro Suzuki, Shigetaka Moriyama, Ken-ichiro Kobayashi, Yoshitaka Itow, Yong Hamb Kim, Yasuhiro Kishimoto, K. Nishijima, Katsuhiko Sato, Lee Min-Kie, and Koichi Ichimura
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Physics ,010308 nuclear & particles physics ,Scattering ,Gravitational wave ,Astrophysics::High Energy Astrophysical Phenomena ,Event (relativity) ,Detector ,Astronomy and Astrophysics ,Astrophysics ,01 natural sciences ,LIGO ,Neutron star ,Binary black hole ,0103 physical sciences ,Neutrino ,010303 astronomy & astrophysics - Abstract
We performed a search for event bursts in the XMASS-I detector associated with 11 gravitational-wave events detected during LIGO/Virgo’s O1 and O2 periods. Simple and loose cuts were applied to the data collected in the full 832 kg xenon volume around the detection time of each gravitational-wave event. The data were divided into four energy regions ranging from keV to MeV. Without assuming any particular burst models, we looked for event bursts in sliding windows with various time width from 0.02 to 10 s. The search was conducted in a time window between − 400 and + 10 , 000 s from each gravitational-wave event. For the binary neutron star merger GW170817, no significant event burst was observed in the XMASS-I detector and we set 90% confidence level upper limits on neutrino fluence for the sum of all the neutrino flavors via coherent elastic neutrino-nucleus scattering. The obtained upper limit was (1.3–2.1) × 10 11 cm − 2 under the assumption of a Fermi-Dirac spectrum with average neutrino energy of 20 MeV. The neutrino fluence limits for mono-energetic neutrinos in the energy range between 14 and 100 MeV were also calculated. Among the other 10 gravitational wave events detected as the binary black hole mergers, a burst candidate with a 3.0 σ significance was found at 1801.95–1803.95 s in the analysis for GW151012. However, no significant deviation from the background in the reconstructed energy and position distributions was found. Considering the additional look-elsewhere effect of analyzing the 11 GW events, the significance of finding such a burst candidate associated with any of them is 2.1 σ .
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- 2021
44. Real-time supernova neutrino burst monitor at Super-Kamiokande
- Author
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A. T. Suzuki, J. F. Martin, T. Nakadaira, G. Carminati, Makoto Sakuda, K. Iyogi, J. L. Raaf, K. Sakashita, K. Kaneyuki, Takaaki Kajita, T. Sekiguchi, E. Kearns, R. A. Wendell, Masashi Yokoyama, Yasunari Suzuki, Y. Hayato, M. Ikeda, John Hill, S. B. Kim, J. Y. Kim, M. Goldhaber, S. N. Smith, Seiko Hirota, T. Kikawa, C. Yanagisawa, Yejin Zhang, T. Ishizuka, L. Marti, K. Tateishi, Tsuyoshi Nakaya, J. S. Jang, A. Himmel, Song Chen, K. Nishijima, W. R. Kropp, S. Tobayama, Takaaki Mori, Kate Scholberg, W. E. Keig, V. Takhistov, Atsushi Takeda, Shigeki Tasaka, E. Richard, J. L. Stone, L. R. Sulak, K. Ieki, Yusuke Suda, Hirokazu Ishino, K. S. Ganezer, R. J. Wilkes, S. Moriyama, R. Tacik, Masayuki Nakahata, I. Kametani, M. Miura, L. Labarga, T. Kobayashi, K. P. Lee, C. K. Jung, Yoshitaka Itow, J. Imber, Masato Shiozawa, Y. Choi, Koh Ueno, H.A. Tanaka, M. J. Wilking, Yasuhiro Kishimoto, A. Konaka, M. B. Smy, Kimihiro Okumura, T. Tomura, H. Okazawa, Y. Kuno, S. Nakayama, T. Yokozawa, T. Tsukamoto, C. Bronner, T. Akiri, B. L. Hartfiel, S. Mine, S. Berkman, J. G. Learned, J. Gustafson, S. Matsuno, T. McLachlan, Takehisa Hasegawa, J. Kameda, P. Fernandez, K. Connolly, P. Mijakowski, K. Choi, K. Huang, Kazuhiro Suzuki, A. Kibayashi, Y. Koshio, T. Ishida, M. Koshiba, H. K. Tanaka, M. R. Vagins, A. Murakami, A. Minamino, G. Mitsuka, I. T. Lim, P. de Perio, T. Yano, A. L. Renshaw, Kenzo Nakamura, Yuichi Oyama, R. Yamaguchi, K. Abe, Y. Totsuka, Susumu Takahashi, T. Wongjirad, Y. Takeuchi, T. Ishii, K. Martens, Y. Nishimura, C. W. Walter, N. Hong, Joshua Hignight, Hiroyuki Sekiya, Y. Fukuda, Yuuki Nakano, T. J. Irvine, Y. Haga, P. Weatherly, and H. W. Sobel
- Subjects
High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,010308 nuclear & particles physics ,Astrophysics::High Energy Astrophysical Phenomena ,Solar neutrino ,High Energy Physics::Phenomenology ,FOS: Physical sciences ,Astronomy ,Astronomy and Astrophysics ,Astrophysics ,Solar neutrino problem ,01 natural sciences ,Cosmic neutrino background ,Astrophysics - Solar and Stellar Astrophysics ,Neutrino detector ,0103 physical sciences ,Measurements of neutrino speed ,High Energy Physics::Experiment ,Neutrino astronomy ,Neutrino ,Astrophysics - High Energy Astrophysical Phenomena ,Super-Kamiokande ,010303 astronomy & astrophysics ,Solar and Stellar Astrophysics (astro-ph.SR) - Abstract
We present a real-time supernova neutrino burst monitor at Super-Kamiokande (SK). Detecting supernova explosions by neutrinos in real time is crucial for giving a clear picture of the explosion mechanism. Since the neutrinos are expected to come earlier than light, a fast broadcasting of the detection may give astronomers a chance to make electromagnetic radiation observations of the explosions right at the onset. The role of the monitor includes a fast announcement of the neutrino burst detection to the world and a determination of the supernova direction. We present the online neutrino burst detection system and studies of the direction determination accuracy based on simulations at SK., 15 pages, 8 figures, accepted for publication in Astroparticle Physics
- Published
- 2016
45. Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector
- Author
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Y. D. Kim, Y. Takeuchi, Kentaro Miuchi, Ken-ichiro Kobayashi, H. Uchida, K.B. Lee, K. Martens, H. Takiya, Yoshitaka Itow, Yong Hamb Kim, Shigeki Tasaka, Koichi Ichimura, Katsuki Hiraide, R. Fujita, Kimiaki Masuda, Hiroyuki Sekiya, Y. Fukuda, K. Hosokawa, Y. Onishi, Motoki Kobayashi, Lee Min-Kie, Atsushi Takeda, S. Moriyama, Masayuki Nakahata, O. Takachio, K. Fujii, K. Nishijima, I. Murayama, R. Kegasa, B. S. Yang, Yasuhiro Kishimoto, Masaki Yamashita, Yoshihiro Suzuki, K. Abe, T. Norita, Jing Liu, Nam Young Kim, Kazuhiko Nakagawa, Jong-Man Lee, N. Oka, Shogo Nakamura, and H. Ogawa
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Nuclear and High Energy Physics ,Physics - Instrumentation and Detectors ,Electron capture ,FOS: Physical sciences ,chemistry.chemical_element ,Electron ,01 natural sciences ,High Energy Physics - Experiment ,Nuclear physics ,High Energy Physics - Experiment (hep-ex) ,Xenon ,Neutrino ,0103 physical sciences ,Nuclear Experiment (nucl-ex) ,010306 general physics ,Nuclear Experiment ,Physics ,Double electron capture ,010308 nuclear & particles physics ,Detector ,Instrumentation and Detectors (physics.ins-det) ,Lepton number ,lcsh:QC1-999 ,MAJORANA ,chemistry ,High Energy Physics::Experiment ,Liquid xenon ,Atomic physics ,lcsh:Physics ,Radioactive decay - Abstract
Double electron capture is a rare nuclear decay process in which two orbital electrons are captured simultaneously in the same nucleus. Measurement of its two-neutrino mode would provide a new reference for the calculation of nuclear matrix elements whereas observation of its neutrinoless mode would demonstrate lepton number violation. A search for two-neutrino double electron capture on $^{124}$Xe is performed using 165.9 days of data collected with the XMASS-I liquid xenon detector. No significant excess above background was observed and we set a lower limit on the half-life as $4.7 \times 10^{21}$ years at 90% confidence level. The obtained limit has ruled out parts of some theoretical expectations. We obtain a lower limit on the $^{126}$Xe two-neutrino double electron capture half-life of $4.3 \times 10^{21}$ years at 90% confidence level as well., 6 pages, 3 figures, accepted for publication in Physics Letters B
- Published
- 2016
- Full Text
- View/download PDF
46. Solar neutrinos in Super-Kamiokande
- Author
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Hiroyuki Sekiya
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,010308 nuclear & particles physics ,Solar neutrino ,High Energy Physics::Phenomenology ,8B neutrino ,Solar neutrino problem ,01 natural sciences ,day-night asymmetry ,Nuclear physics ,Cosmic neutrino background ,Solar core ,0103 physical sciences ,Measurements of neutrino speed ,High Energy Physics::Experiment ,Astrophysics::Earth and Planetary Astrophysics ,Neutrino ,010306 general physics ,Super-Kamiokande ,Neutrino oscillation ,MSW effect - Abstract
Recently the concern with the effect of matter on the neutrino oscillation has been growing, because the possibility of mass hierarchy determination by next generation experiments through the matter effect has been recognized. We report an indication that the elastic scattering rate of solar 8B neutrinos with electrons in the Super-Kamiokande detector is larger when the neutrinos pass through Earth during nighttime. This is the first direct indication that neutrino oscillation probabilities are modified by the presence of matter. The observed the day-night asymmetry is −3.3±1.0(stat.)±0.5(syst.) for Δm212=4.84×105eV2, sin2θ12=0.311 and sin2θ13=0.025, which deviates from zero by 3σ. Since the elastic scattering process is mostly sensitive to electron-flavored solar neutrinos, a nonzero day-night asymmetry implies that the flavor oscillations of solar neutrinos are affected by the presence of matter within the neutrinos' flight path. Super-Kamiokande's day-night asymmetry is consistent with neutrino oscillations for 4×10−5eV2≤Δm212≤7×10−5eV2 and large mixing values of θ12 at the 68% C.L. We also report the measured recoil electron spectrum whose shape should reflect the transition between vacuum dominated oscillations (lower energy solar neutrinos) and matter dominated oscillations (higher energy solar neutrinos).
- Published
- 2016
47. Maps Obtained Using Developmental-Stage Models and Mesh Temperature Data to Forecast Heading Dates of Forage Rice Cultivars Direct-seeded in the Tohoku Region
- Author
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Hiromichi Yamaguchi, Hidenori Kawamoto, Shoichi Kimura, Akinori Oshibe, Hiroyuki Sekiya, Akira Fukushima, Hiroyuki Shiratsuchi, Akari Fukuda, and Eiji Kanda
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Developmental stage ,Heading (navigation) ,Agronomy ,Genetics ,Seeding ,Forage ,Cultivar ,Biology ,Agronomy and Crop Science ,Food Science - Published
- 2016
48. Evaluation of radon adsorption efficiency values in xenon with activated carbon fibers
- Author
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Yuuki Nakano, T. Okada, Hiroyuki Sekiya, Masaki Yamashita, Y. Takeuchi, Koichi Ichimura, Hiroshi Ito, and S. Tasaka
- Subjects
Physics ,Physics - Instrumentation and Detectors ,Argon ,Analytical chemistry ,General Physics and Astronomy ,chemistry.chemical_element ,Noble gas ,FOS: Physical sciences ,Radon ,Instrumentation and Detectors (physics.ins-det) ,Uranium ,Xenon ,Adsorption ,chemistry ,Saturation (graph theory) ,medicine ,Activated carbon ,medicine.drug - Abstract
The radioactive noble gas radon-222 ($\mathrm{^{222}Rn}$, or Rn) produced in the uranium series is a crucial background source in many underground experiments. We have estimated the adsorption property of Rn with Activated Carbon Fibers (ACFs) in air (Air), argon (Ar), and xenon (Xe) gas. In this study, we evaluated six ACFs, named A-7, A-10, A-15, A-20, A-25, and S-25, provided from UNITIKA Ltd. We measured intrinsic radioactivity of these ACF samples, and found A-20's radioactivity of the uranium series is $, 17 pages, 9 figures
- Published
- 2020
49. Measurement of the radon concentration in purified water in the Super-Kamiokande IV detector
- Author
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T. Nakamura, R. A. Wendell, Hiroyuki Sekiya, Y. Takeuchi, Yuuki Nakano, Masayuki Nakahata, M. Miwa, Shigeki Tasaka, M. Matsubara, and T. Hokama
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Nuclear and High Energy Physics ,Physics - Instrumentation and Detectors ,Solar neutrino ,chemistry.chemical_element ,Mineralogy ,FOS: Physical sciences ,Radon ,Radon extraction column ,01 natural sciences ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,0103 physical sciences ,Calibration ,010306 general physics ,Instrumentation ,Physics ,010308 nuclear & particles physics ,Extraction (chemistry) ,Detector ,Noble gas ,Instrumentation and Detectors (physics.ins-det) ,Purified water ,chemistry ,Charcoal ,Super-Kamiokande - Abstract
The radioactive noble gas radon can be a serious background source in the underground particle physics experiments studying processes that deposit energy comparable to its decay products. Low energy solar neutrino measurements at Super-Kamiokande suffer from these backgrounds and therefore require precise characterization of the radon concentration in the detector's ultra-pure water. For this purpose, we have developed a measurement system consisting of a radon extraction column, a charcoal trap, and a radon detector. In this article we discuss the design, calibration, and performance of the radon extraction column. We also describe the design of the measurement system and evaluate its performance, including its background. Using this system we measured the radon concentration in Super-Kamiokande's water between May 2014 and October 2015. The measured radon concentration in the supply lines of the water circulation system was $1.74\pm0.14~\mathrm{mBq/m^{3}}$ and in the return line was $9.06\pm0.58~\mathrm{mBq/m^{3}}$. Water sampled from the center region of the detector itself had a concentration of $, 20 pages, 10 figures
- Published
- 2020
50. AXEL: High-pressure Xe gas TPC for BG-free 0ν2β decay search
- Author
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S. Obara, S. Ban, Minoru Yoshida, Yutaka Nakajima, Kentaro Miuchi, A. K. Ichikawa, K. Ueshima, T. Nakadaira, Kiseki Nakamura, Hiroyuki Sekiya, Yoshihisa Iwashita, T. Kikawa, A. Minamino, M. Hirose, K. Z. Nakamura, Shiro Tanaka, Tsuyoshi Nakaya, and K. Sakashita
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Physics ,Nuclear and High Energy Physics ,Time projection chamber ,010308 nuclear & particles physics ,Detector ,Photodetector ,chemistry.chemical_element ,High voltage ,01 natural sciences ,Nuclear physics ,Xenon ,chemistry ,Double beta decay ,Ionization ,0103 physical sciences ,Gas detector ,010306 general physics ,Instrumentation - Abstract
AXEL is a high-pressure xenon gas time projection chamber for neutrinoless double-beta decay ( 0 ν 2 β ) search. The AXEL has a unique readout system called ELCC which has a cellular structure and photosensors to detect electroluminescence light produced by ionization electrons. We demonstrated the performance of the ELCC with a small prototype detector (AXEL-HP10L). The obtained energy resolution corresponds to 0 . 82 − 1 . 74 % (FWHM) at the 0 ν 2 β Q-value. We are constructing a new prototype (AXEL-HP180L) in order to study the energy resolution at the Q-value of 0 ν 2 β with a new design of ELCC with unit structure, newly developed electronics board, field-shaping electrodes, and Cockcroft–Walton-type high voltage power supply. For a future 1-ton scale large AXEL detector, we are developing new background-reduction techniques; topology identification with machine learning, positive-ion detection, and active-shield options.
- Published
- 2020
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