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Search for Periodic Time Variations of the Solar 8B Neutrino Flux between 1996 and 2018 in Super-Kamiokande

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arXiv 2023年

作者： Abe, K. Bronner, C. Hayato, Y. Hiraide, K. Hosokawa, K. Ieki, K. Ikeda, M. Kameda, J. Kanemura, Y. Kaneshima, R. Kashiwagi, Y. Kataoka, Y. Miki, S. Mine, S. Miura, M. Moriyama, S. Nakano, Y. Nakahata, M. Nakayama, S. Noguchi, Y. Sato, K. Sekiya, H. Shiba, H. Shimizu, K. Shiozawa, M. Sonoda, Y. Suzuki, Y. Takeda, A. Takemoto, Y. Tanaka, H. Yano, T. Han, S. Kajita, T. Okumura, K. Tashiro, T. Tomiya, T. Wang, X. Yoshida, S. Fernandez, P. Labarga, L. Ospina, N. Zaldivar, B. Pointon, B.W. Kearns, E. Raaf, J.L. Wan, L. Wester, T. Bian, J. Griskevich, N.J. Locke, S. Smy, M.B. Sobel, H.W. Takhistov, V. Yankelevich, A. Hill, J. Lee, S.H. Moon, D.H. Park, R.G. Jang, M.C. Bodur, B. Scholberg, K. Walter, C.W. Beauchêne, A. Drapier, O. Giampaolo, A. Mueller, Th.A. Santos, A.D. Paganini, P. Quilain, B. Nakamura, T. Jang, J.S. Machado, L.N. Learned, J.G. Choi, K. Iovine, N. Cao, S. Anthony, L.H.V. Martin, D. Prouse, N.W. Scott, M. Sztuc, A.A. Uchida, Y. Berardi, V. Catanesi, M.G. Radicioni, E. Calabria, N.F. Langella, A. De Rosa, G. Collazuol, G. Iacob, F. Mattiazzi, M. Ludovici, L. Gonin, M. Pronost, G. Fujisawa, C. Maekawa, Y. Nishimura, Y. Okazaki, R. Akutsu, R. Friend, M. Hasegawa, T. Ishida, T. Kobayashi, T. Jakkapu, M. Matsubara, T. Nakadaira, T. Nakamura, K. Oyama, Y. Sakashita, K. Sekiguchi, T. Tsukamoto, T. Bhuiyan, N. Burton, G.T. Di Lodovico, F. Gao, J. Goldsack, A. Katori, T. Migenda, J. Xie, Z. Ramsden, R.M. Zsoldos, S. Suzuki, A.T. Takagi, Y. Zhong, H. Takeuchi, Y. Feng, J. Feng, L. Hu, J.R. Hu, Z. Kikawa, T. Mori, M. Kawaue, M. Nakaya, T. Wendell, R.A. Yasutome, K. Jenkins, S.J. McCauley, N. Mehta, P. Tarant, A. Fukuda, Y. Itow, Y. Menjo, H. Ninomiya, K. Yoshioka, Y. Lagoda, J. Lakshmi, S.M. Mandal, M. Mijakowski, P. Prabhu, Y.S. Zalipska, J. Jia, M. Jiang, J. Jung, C.K. Wilking, M.J. Yanagisawa, C. Shi, W. Harada, M. Hino, Y. Ishino, H. Koshio, Y. Nakanishi, F. Kamioka Observatory Institute for Cosmic Ray Research University of Tokyo Kamioka Gifu506-1205 Japan Research Center for Cosmic Neutrinos Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Department of Theoretical Physics University Autonoma Madrid Madrid28049 Spain Department of Physics Boston University BostonMA02215 United States Department of Physics British Columbia Institute of Technology BurnabyBCV5G 3H2 Canada Department of Physics and Astronomy University of California Irvine IrvineCA92697-4575 United States Department of Physics California State University Dominguez Hills CarsonCA90747 United States Institute for Universe and Elementary Particles Chonnam National University Gwangju61186 Korea Republic of Department of Physics Duke University DurhamNC27708 United States Ecole Polytechnique IN2P3 CNRS Laboratoire Leprince-Ringuet PalaiseauF-91120 France Department of Physics Gifu University Gifu501-1193 Japan GIST College Gwangju Institute of Science and Technology Gwangju500-712 Korea Republic of School of Physics and Astronomy University of Glasgow GlasgowG12 8QQ United Kingdom Department of Physics and Astronomy University of Hawaii HonoluluHI96822 United States Daejeon34126 Korea Republic of Institute For Interdisciplinary Research in Science and Education ICISE Quy Nhon55121 Viet Nam Department of Physics Imperial College London LondonSW7 2AZ United Kingdom Dipartimento Interuniversitario di Fisica INFN Sezione di Bari Università e Politecnico di Bari BariI-70125 Italy Dipartimento di Fisica INFN Sezione di Napoli Università di Napoli NapoliI-80126 Italy Dipartimento di Fisica INFN Sezione di Padova Università di Padova PadovaI-35131 Italy INFN Sezione di Roma Università di Roma "La Sapienza" RomaI-00185 Italy ILANCE CNRS - University of Tokyo International Research Laboratory Chiba Kashiwa277-8582 Japan Department of Physics Keio University Kanagawa Yokohama

We report a search for time variations of the solar 8B neutrino flux using 5804 live days of Super-Kamiokande data collected between May 31, 1996, and May 30, 2018. Super-Kamiokande measured the precise time of each solar neutrino interaction over 22 calendar years to search for solar neutrino flux modulations with unprecedented precision. Periodic modulations are searched for in a dataset comprising five-day interval solar neutrino flux measurements with a maximum likelihood method. We also applied the Lomb-Scargle method to this dataset to compare it with previous reports. The only significant modulation found is due to the elliptic orbit of the Earth around the Sun. The observed modulation is consistent with astronomical data: we measured an eccentricity of (1.53±0.35)%, and a perihelion shift of (−1.5±13.5) days. Copyright © 2023, The Authors. All rights reserved.

关键词： Orbits

Neutron Tagging following Atmospheric Neutrino Events in a Water Cherenkov Detector

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arXiv 2022年

作者： Abe, K. Haga, Y. Hayato, Yoshinari Hiraide, K. Ieki, K. Ikeda, M. Imaizumi, S. Iyogi, K. Kameda, J. Kanemura, Y. Kataoka, Y. Kato, Y. Kishimoto, Y. Miki, S. Mine, S. Miura, M. Mochizuki, T. Moriyama, S. Nagao, Y. Nakahata, M. Nakajima, T. Nakano, Y. Nakayama, S. Okada, T. Okamoto, K. Orii, A. Sato, K. Sekiya, H. Shiozawa, M. Sonoda, Y. Suzuki, Y. Takeda, A. Takemoto, Y. Takenaka, A. Tanaka, H. Tasaka, S. Tomura, T. Ueno, K. Watanabe, S. Yano, T. Yokozawa, T. Han, S. Irvine, T. Kajita, T. Kametani, I. Kaneyuki, K. Lee, K.P. McLachlan, T. Okumura, K. Richard, E. Tashiro, T. Wang, R. Xia, J. Megias, G.D. Bravo-Berguño, D. Labarga, L. Zaldivar, B. Goldhaber, M. Blaszczyk, F.D.M. Gustafson, J. Kachulis, C. Kearns, E. Raaf, J.L. Stone, J.L. Sulak, L.R. Sussman, S. Wan, L. Wester, T. Pointon, B.W. Bian, J. Carminati, G. Elnimr, M. Griskevich, N.J. Kropp, W.R. Locke, S. Renshaw, A. Smy, M.B. Sobel, H.W. Takhistov, V. Weatherly, P. Ganezer, K.S. Hartfiel, B.L. Hill, J. Keig, W.E. Hong, N. Kim, J.Y. Lim, I.T. Park, R.G. Akiri, T. Bodur, B. Himmel, A. Li, Z. O'Sullivan, E. Scholberg, K. Walter, C.W. Wongjirad, T. Bernard, L. Coffani, A. Drapier, O. El Hedri, S. Giampaolo, A. Imber, J. Mueller, Th.A. Paganini, P. Quilain, B. Ishizuka, T. Nakamura, T. Jang, J.S. Choi, K. Learned, J.G. Matsuno, S. Smith, S.N. Amey, J. Anthony, L.H.V. Litchfield, R.P. Ma, W.Y. Marin, D. Sztuc, A.A. Uchida, Y. Wascko, M.O. Berardi, V. Catanesi, M.G. Intonti, R.A. Radicioni, E. Calabria, N.F. De Rosa, G. Machado, L.N. Collazuol, G. Iacob, F. Lamoureux, M. Ospina, N. Ludovici, L. Gonin, M. Pronost, G. Maekawa, Y. Nishimura, Y. Cao, S. Friend, M. Hasegawa, T. Ishida, T. Ishii, T. Jakkapu, M. Kobayashi, T. Matsubara, T. Nakadaira, T. Nakamura, K. Oyama, Y. Sakashita, K. Sekiguchi, T. Tsukamoto, T. Boschi, T. Di Lodovico, F. Migenda, J. Molina Sedgwick, S. Taani, M. Zsoldos, S. Abe, K.E. Hasegawa, M. Isobe, Y. Kotsar, Y. Miyabe, H. Kamioka Observatory Institute for Cosmic Ray Research University of Tokyo Kamioka Gifu506-1205 Japan Research Center for Cosmic Neutrinos Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Department of Theoretical Physics University Autonoma Madrid Madrid28049 Spain Physics Department Brookhaven National Laboratory UptonNY11973 United States Department of Physics Boston University BostonMA02215 United States Department of Physics British Columbia Institute of Technology BurnabyBCV5G 3H2 Canada Department of Physics and Astronomy University of California Irvine IrvineCA92697-4575 United States Department of Physics California State University Dominguez Hills CarsonCA90747 United States Institute for Universe and Elementary Particles Chonnam National University Gwangju61186 Korea Republic of Department of Physics Duke University DurhamNC27708 United States Ecole Polytechnique IN2P3 CNRS Laboratoire Leprince-Ringuet PalaiseauF-91120 France Junior College Fukuoka Institute of Technology Fukuoka Fukuoka811-0295 Japan Department of Physics Gifu University Gifu Gifu501-1193 Japan GIST College Gwangju Institute of Science and Technology Gwangju500-712 Korea Republic of Department of Physics and Astronomy University of Hawaii HonoluluHI96822 United States Department of Physics Imperial College London LondonSW7 2AZ United Kingdom Dipartimento Interuniversitario di Fisica INFN Sezione di Bari Università e Politecnico di Bari BariI-70125 Italy Dipartimento di Fisica INFN Sezione di Napoli Università di Napoli NapoliI-80126 Italy Dipartimento di Fisica INFN Sezione di Padova Università di Padova PadovaI-35131 Italy INFN Sezione di Roma Università di Roma "La Sapienza" RomaI-00185 Italy ILANCE CNRS University of Tokyo International Research Laboratory Chiba Kashiwa277-8582 Japan Department of Physics Ke

We present the development of neutron-tagging techniques in Super-Kamiokande IV using a neural network analysis. The detection efficiency of neutron capture on hydrogen is estimated to be 26%, with a mis-tag rate of 0.016 per neutrino event. The uncertainty of the tagging efficiency is estimated to be 9.0%. Measurement of the tagging efficiency with data from an Americium-Beryllium calibration agrees with this value within 10%. The tagging procedure was performed on 3,244.4 days of SK-IV atmospheric neutrino data, identifying 18,091 neutrons in 26,473 neutrino events. The fitted neutron capture lifetime was measured as 218 ± 9 μs. Copyright © 2022, The Authors. All rights reserved.

关键词： Neutrons

The Brain Tumor Segmentation (BraTS) Challenge: Local Synthesis of Healthy Brain Tissue via Inpainting

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arXiv 2023年

作者： Kofler, Florian Steinbauer, Felix Meissen, Felix Graf, Robert Ehrlich, Stefan K. Reinke, Annika Oswald, Eva Waldmannstetter, Diana Hoelzl, Florian Horvath, Izabela Turgut, Oezguen Shit, Suprosanna Bukas, Christina Yang, Kaiyuan Paetzold, Johannes C. de da Rosa, Ezequiel Mekki, Isra Vinayahalingam, Shankeeth Kassem, Hasan Zhang, Juexin Chen, Ke Weng, Ying Durrer, Alicia Cattin, Philippe C. Wolleb, Julia Sadique, M.S. Rahman, M.M. Farzana, W. Temtam, A. Iftekharuddin, K.M. Adewole, Maruf Anwar, Syed Muhammad Baid, Ujjwal Janas, Anastasia Kazerooni, Anahita Fathi LaBella, Dominic Bran Li, Hongwei Moawad, Ahmed W. Conte, Gian-Marco Farahani, Keyvan Eddy, James Sheller, Micah Pati, Sarthak Karagyris, Alexandros Aristizabal, Alejandro Bergquist, Timothy Chung, Verena Shinohara, Russell Takeshi Dako, Farouk Wiggins, Walter Reitman, Zachary Wang, Chunhao Liu, Xinyang Jiang, Zhifan Johanson, Elaine Meier, Zeke Familiar, Ariana Davatzikos, Christos Freymann, John Kirby, Justin Bilello, Michel Fathallah-Shaykh, Hassan M. Wiest, Roland Kirschke, Jan Colen, Rivka R. Kotrotsou, Aikaterini Lamontagne, Pamela Marcus, Daniel Milchenko, Mikhail Nazeri, Arash Weber, Marc-André Mahajan, Abhishek Mohan, Suyash Mongan, John Hess, Christopher Cha, Soonmee Villanueva-Meyer, Javier Colak, Errol Crivellaro, Priscila Jakab, Andras Fatade, Abiodun Omidiji, Olubukola Akinola Lagos, Rachel Olatunji, O.O. Khanna, Goldey Kirkpatrick, John Alonso-Basanta, Michelle Rashid, Arif Bornhorst, Miriam Nabavizadeh, Ali Lepore, Natasha Palmer, Joshua Porras, Antonio Albrecht, Jake Anazodo, Udunna Aboian, Mariam Calabrese, Evan Rudie, Jeffrey David Linguraru, Marius George Iglesias, Juan Eugenio Van Leemput, Koen Bakas, Spyridon Wiestler, Benedikt Ezhov, Ivan Piraud, Marie Menze, Bjoern H. Helmholtz AI Germany Technical University of Munich Germany Helmholtz Munich Germany Klinikum Rechts der Isar Munich Germany SETLabs Research GmbH Healthcare Technologies Munich Germany Heidelberg Division of Intelligent Medical Systems Germany Heidelberg HI Helmholtz Imaging Germany Institute of Clinical Neuroimmunology Faculty of Medicine Ludwig Maximilian University Munich Germany University of Zurich Switzerland Helmholtz Research Center Munich Germany Imperial College London United Kingdom Icometrix Leuven Belgium Department of Oral and Maxillofacial Surgery Radboudumc Netherlands Department of Artificial Intelligence Radboud University Netherlands MLCommons University of Nottingham Ningbo China Ningbo315100 China Center for medical Image Analysis and Navigation Department of Biomedical Engineering University of Basel Allschwil Switzerland Old Dominion University NorfolkVA23529 United States Lab Crestview Radiology Lagos Nigeria Children's National Hospital WashingtonDC United States George Washington University WashingtonDC United States University of Pennsylvania PhiladelphiaPA United States Department of Radiology Perelman School of Medicine University of Pennsylvania PhiladelphiaPA United States Department of Pathology and Laboratory Medicine Perelman School of Medicine University of Pennsylvania PhiladelphiaPA United States Yale University New HavenCT United States Children's Hospital of Philadelphia University of Pennsylvania PhiladelphiaPA United States Duke University Medical Center Department of Radiation Oncology United States Athinoula A Martinos Center for Biomedical Imaging Massachusetts General Hospital BostonMA United States Department of Neuroradiology Technical University of Munich Munich Germany Mercy Catholic Medical Center DarbyPA United States Department of Radiology Mayo Clinic RochesterMN United States Cancer Imaging Program National Cancer Institute National Institutes of Health BethesdaMD20814 U

A myriad of algorithms for the automatic analysis of brain MR images is available to support clinicians in their decision-making. For brain tumor patients, the image acquisition time series typically starts with an already pathological scan. This poses problems, as many algorithms are designed to analyze healthy brains and provide no guarantee for images featuring lesions. Examples include but are not limited to algorithms for brain anatomy parcellation, tissue segmentation, and brain extraction. To solve this dilemma, we introduce the BraTS inpainting challenge. Here, the participants explore inpainting techniques to synthesize healthy brain scans from lesioned ones. The following manuscript contains the task formulation, dataset, and submission procedure. Later, it will be updated to summarize the findings of the challenge. The challenge is organized as part of the ASNR-BraTS MICCAI challenge. Copyright © 2023, The Authors. All rights reserved.

关键词： Magnetic resonance imaging

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

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arXiv 2023年

作者： Wester, T. Abe, K. Bronner, C. Hayato, Y. Hiraide, K. Hosokawa, K. Ieki, K. Ikeda, M. Kameda, J. Kanemura, Y. Kaneshima, R. Kashiwagi, Y. Kataoka, Y. Miki, S. Mine, S. Miura, M. Moriyama, S. Nakano, Y. Nakahata, M. Nakayama, S. Noguchi, Y. Sato, K. Sekiya, H. Shiba, H. Shimizu, K. Shiozawa, M. Sonoda, Y. Suzuki, Y. Takeda, A. Takemoto, Y. Tanaka, H. Yano, T. Han, S. Kajita, T. Okumura, K. Tashiro, T. Tomiya, T. Wang, X. Yoshida, S. Fernandez, P. Labarga, L. Ospina, N. Zaldivar, B. Pointon, B.W. Kearns, E. Raaf, J.L. Wan, L. Bian, J. Griskevich, N.J. Locke, S. Smy, M.B. Sobel, H.W. Takhistov, V. Yankelevich, A. Hill, J. Lee, S.H. Moon, D.H. Park, R.G. Bodur, B. Scholberg, K. Walter, C.W. Beauchêne, A. Drapier, O. Giampaolo, A. Mueller, Th.A. Santos, A.D. Paganini, P. Quilain, B. Nakamura, T. Jang, J.S. Machado, L.N. Learned, J.G. Choi, K. Iovine, N. Cao, S. Anthony, L.H.V. Martin, D. Prouse, N.W. Scott, M. Sztuc, A.A. Uchida, Y. Berardi, V. Catanesi, M.G. Radicioni, E. Calabria, N.F. Langella, A. De Rosa, G. Collazuol, G. Iacob, F. Mattiazzi, M. Ludovici, L. Gonin, M. Pronost, G. Fujisawa, C. Maekawa, Y. Nishimura, Y. Okazaki, R. Akutsu, R. Friend, M. Hasegawa, T. Ishida, T. Kobayashi, T. Jakkapu, M. Matsubara, T. Nakadaira, T. Nakamura, K. Oyama, Y. Sakashita, K. Sekiguchi, T. Tsukamoto, T. Bhuiyan, N. Burton, G.T. Di Lodovico, F. Gao, J. Goldsack, A. Katori, T. Migenda, J. Ramsden, R. Xie, Z. Zsoldos, S. Suzuki, A.T. Takagi, Y. Takeuchi, Y. Zhong, H. Feng, J. Feng, L. Hu, J.R. Hu, Z. Kawaue, M. Kikawa, T. Mori, M. Nakaya, T. Wendell, R.A. Yasutome, K. Jenkins, S.J. McCauley, N. Mehta, P. Tarrant, A. Fukuda, Y. Itow, Y. Menjo, H. Ninomiya, K. Lagoda, J. Lakshmi, S.M. Mandal, M. Mijakowski, P. Prabhu, Y.S. Zalipska, J. Jia, M. Jiang, J. Jung, C.K. Shi, W. Wilking, M.J. Yanagisawa, C. Harada, M. Hino, Y. Ishino, H. Koshio, Y. Nakanishi, F. Sakai, S. Tada, T. Tano, T. Kamioka Observatory Institute for Cosmic Ray Research University of Tokyo Kamioka Gifu506-1205 Japan Research Center for Cosmic Neutrinos Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Department of Theoretical Physics University Autonoma Madrid Madrid28049 Spain Department of Physics Boston University BostonMA02215 United States Department of Physics British Columbia Institute of Technology BurnabyBCV5G 3H2 Canada Department of Physics and Astronomy University of California Irvine IrvineCA92697-4575 United States Department of Physics California State University Dominguez Hills CarsonCA90747 United States Institute for Universe and Elementary Particles Chonnam National University Gwangju61186 Korea Republic of Department of Physics Duke University DurhamNC27708 United States Ecole Polytechnique IN2P3 CNRS Laboratoire Leprince-Ringuet PalaiseauF-91120 France Department of Physics Gifu University Gifu501-1193 Japan GIST College Gwangju Institute of Science and Technology Gwangju500-712 Korea Republic of School of Physics and Astronomy University of Glasgow GlasgowG12 8QQ United Kingdom Department of Physics and Astronomy University of Hawaii HonoluluHI96822 United States Daejeon34126 Korea Republic of Institute for Interdisciplinary Research in Science and Education ICISE Quy Nhon55121 Viet Nam Department of Physics Imperial College London LondonSW7 2AZ United Kingdom Dipartimento Interuniversitario di Fisica INFN Sezione di Bari Università e Politecnico di Bari BariI-70125 Italy Dipartimento di Fisica INFN Sezione di Napoli Università di Napoli NapoliI-80126 Italy Dipartimento di Fisica INFN Sezione di Padova Università di Padova PadovaI-35131 Italy INFN Sezione di Roma Università di Roma "La Sapienza" RomaI-00185 Italy ILANCE CNRS University of Tokyo International Research Laboratory Chiba Kashiwa277-8582 Japan Department of Physics Keio University Kanagawa Yokohama

We present a measurement of neutrino oscillation parameters with the Super-Kamiokande detector using atmospheric neutrinos from the complete pure-water SK I-V (April 1996-July 2020) data set, including events from an expanded fiducial volume. The data set corresponds to 6511.3 live days and an exposure of 484.2 kiloton-years. Measurements of the neutrino oscillation parameters ∆m232, sin2 θ23, sin2 θ13, δCP, and the preference for the neutrino mass ordering are presented with atmospheric neutrino data alone, and with constraints on sin2 θ13 from reactor neutrino experiments. Our analysis including constraints on sin2 θ13 favors the normal mass ordering at the 92.3 % level. Copyright © 2023, The Authors. All rights reserved.

关键词： Neutrons

Measurement of the neutrino-oxygen neutral-current quasielastic cross section using atmospheric neutrinos in the SK-Gd experiment

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arXiv 2023年

作者： Sakai, S. Abe, K. Bronner, C. Hayato, Y. Hiraide, K. Hosokawa, K. Ieki, K. Ikeda, M. Kameda, J. Kanemura, Y. Kaneshima, R. Kashiwagi, Y. Kataoka, Y. Miki, S. Mine, S. Miura, M. Moriyama, S. Nakano, Y. Nakahata, M. Nakayama, S. Noguchi, Y. Sato, K. Sekiya, H. Shiba, H. Shimizu, K. Shiozawa, M. Sonoda, Y. Suzuki, Y. Takeda, A. Takemoto, Y. Tanaka, H. Yano, T. Han, S. Kajita, T. Okumura, K. Tashiro, T. Tomiya, T. Wang, X. Yoshida, S. Fernandez, P. Labarga, L. Ospina, N. Zaldivar, B. Pointon, B.W. Kearns, E. Raaf, J.L. Wan, L. Wester, T. Bian, J. Griskevich, N.J. Locke, S. Smy, M.B. Sobel, H.W. Takhistov, V. Yankelevich, A. Hill, J. Jang, M.C. Lee, S.H. Moon, D.H. Park, R.G. Bodur, B. Scholberg, K. Walter, C.W. Beauchêne, A. Drapier, O. Giampaolo, A. Mueller, Th A. Santos, A.D. Paganini, P. Quilain, B. Nakamura, T. Jang, J.S. Machado, L.N. Learned, J.G. Choi, K. Iovine, N. Cao, S. Anthony, L.H.V. Martin, D. Prouse, N.W. Scott, M. Sztuc, A.A. Uchida, Y. Berardi, V. Calabria, N.F. Catanesi, M.G. Radicioni, E. Langella, A. De Rosa, G. Collazuol, G. Iacob, F. Mattiazzi, M. Ludovici, L. Gonin, M. Pronost, G. Fujisawa, C. Maekawa, Y. Nishimura, Y. Okazaki, R. Akutsu, R. Friend, M. Hasegawa, T. Ishida, T. Kobayashi, T. Jakkapu, M. Matsubara, T. Nakadaira, T. Nakamura, K. Oyama, Y. Sakashita, K. Sekiguchi, T. Tsukamoto, T. Bhuiyan, N. Burton, G.T. Di Lodovico, F. Gao, J. Goldsack, A. Katori, T. Migenda, J. Ramsden, R.M. Xie, Z. Zsoldos, S. Suzuki, A.T. Takagi, Y. Zhong, H. Takeuchi, Y. Feng, J. Feng, L. Hu, J.R. Hu, Z. Kawaue, M. Kikawa, T. Mori, M. Nakaya, T. Wendell, R.A. Yasutome, K. Jenkins, S.J. McCauley, N. Mehta, P. Tarant, A. Fukuda, Y. Itow, Y. Menjo, H. Ninomiya, K. Yoshioka, Y. Lagoda, J. Lakshmi, S.M. Mandal, M. Mijakowski, P. Prabhu, Y.S. Zalipska, J. Jia, M. Jiang, J. Jung, C.K. Shi, W. Wilking, M.J. Yanagisawa, C. Harada, M. Hino, Y. Ishino, H. Koshio, Y. Kamioka Observatory Institute for Cosmic Ray Research University of Tokyo Kamioka Gifu506-1205 Japan Research Center for Cosmic Neutrinos Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Department of Theoretical Physics University Autonoma Madrid Madrid28049 Spain Department of Physics Boston University BostonMA02215 United States Department of Physics British Columbia Institute of Technology BurnabyBCV5G 3H2 Canada Department of Physics and Astronomy University of California Irvine IrvineCA92697-4575 United States Department of Physics California State University Dominguez Hills CarsonCA90747 United States Institute for Universe and Elementary Particles Chonnam National University Gwangju61186 Korea Republic of Department of Physics Duke University DurhamNC27708 United States Ecole Polytechnique IN2P3 CNRS Laboratoire Leprince-Ringuet PalaiseauF-91120 France Department of Physics Gifu University Gifu Gifu501-1193 Japan GIST College Gwangju Institute of Science and Technology Gwangju500-712 Korea Republic of School of Physics and Astronomy University of Glasgow GlasgowG12 8QQ United Kingdom Department of Physics and Astronomy University of Hawaii HonoluluHI96822 United States Daejeon34126 Korea Republic of Institute For Interdisciplinary Research in Science and Education ICISE Quy Nhon55121 Viet Nam Department of Physics Imperial College London LondonSW7 2AZ United Kingdom Dipartimento Interuniversitario di Fisica INFN Sezione di Bari Università e Politecnico di Bari BariI-70125 Italy Dipartimento di Fisica INFN Sezione di Napoli Università di Napoli NapoliI-80126 Italy Dipartimento di Fisica INFN Sezione di Padova Università di Padova PadovaI-35131 Italy INFN Sezione di Roma Università di Roma "La Sapienza" RomaI-00185 Italy ILANCE CNRS - University of Tokyo International Research Laboratory Chiba Kashiwa277-8582 Japan Department of Physics Keio University Kanagawa Yo

We report the first measurement of the atmospheric neutrino-oxygen neutral-current quasielastic (NCQE) cross section in the gadolinium-loaded Super-Kamiokande (SK) water Cherenkov detector. In June 2020, SK began a new experimental phase, named SK-Gd, by loading 0.011% by mass of gadolinium into the ultrapure water of the SK detector. The introduction of gadolinium to ultrapure water has the effect of improving the neutron-tagging efficiency. Using a 552.2 day data set from August 2020 to June 2022, we measure the NCQE cross section to be 0.74 ± 0.22(stat.) +0.85−0.15(syst.) × 10−38 cm2/oxygen in the energy range from 160 MeV to 10 GeV, which is consistent with the atmospheric neutrino-flux-averaged theoretical NCQE cross section and the measurement in the SK pure-water phase within the uncertainties. Furthermore, we compare the models of the nucleon-nucleus interactions in water and find that the Binary Cascade model and the Liège Intranuclear Cascade model provide a somewhat better fit to the observed data than the Bertini Cascade model. Since the atmospheric neutrino-oxygen NCQE reactions are one of the main backgrounds in the search for diffuse supernova neutrino background (DSNB), these new results will contribute to future studies – and the potential discovery – of the DSNB in SK. Copyright © 2023, The Authors. All rights reserved.

关键词： Oxygen

Search for astrophysical electron antineutrinos in Super-Kamiokande with 0.01wt% gadolinium-loaded water

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arXiv 2023年

作者： Harada, M. Abe, K. Bronner, C. Hayato, Y. Hiraide, K. Hosokawa, K. Ieki, K. Ikeda, M. Kameda, J. Kanemura, Y. Kaneshima, R. Kashiwagi, Y. Kataoka, Y. Miki, S. Mine, S. Miura, M. Moriyama, S. Nakano, Y. Nakahata, M. Nakayama, S. Noguchi, Y. Okamoto, K. Sato, K. Sekiya, H. Shiba, H. Shimizu, K. 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. Tomiya, T. Wang, X. Yoshida, S. Megias, G.D. Fernandez, P. Labarga, L. Ospina, N. Zaldivar, B. Pointon, B.W. Kearns, E. Raaf, J.L. Wan, L. Wester, T. Bian, J. Griskevich, N.J. Locke, S. Smy, M.B. Sobel, H.W. Takhistov, V. Yankelevich, A. Hill, J. Lee, S.H. Moon, D.H. Park, R.G. Bodur, B. Scholberg, K. Walter, C.W. Beauchêne, A. Drapier, O. Giampaolo, A. Mueller, Th A. Santos, A.D. Paganini, P. Quilain, B. Ishizuka, T. Nakamura, T. Jang, J.S. Learned, J.G. Choi, K. Iovine, N. Cao, S. Anthony, L.H.V. Martin, D. Scott, M. Sztuc, A.A. Uchida, Y. Berardi, V. Catanesi, M.G. Radicioni, E. Calabria, N.F. Langella, A. Machado, L.N. De Rosa, G. Collazuol, G. Iacob, F. Lamoureux, M. Mattiazzi, M. Ludovici, L. Gonin, M. Pronost, G. Fujisawa, C. Maekawa, Y. Nishimura, Y. Okazaki, R. Akutsu, R. Friend, M. Hasegawa, T. Ishida, T. Kobayashi, T. Jakkapu, M. Matsubara, T. Nakadaira, T. Nakamura, K. Oyama, Y. Sakashita, K. Sekiguchi, T. Tsukamoto, T. Bhuiyan, N. Burton, G.T. Di Lodovico, F. Gao, J. Goldsack, A. Katori, T. Migenda, J. Xie, Z. Zsoldos, S. Kotsar, Y. Ozaki, H. Suzuki, A.T. Takagi, Y. Takeuchi, Y. Feng, J. Feng, L. Hu, J.R. Hu, Z. Kikawa, T. Mori, M. Nakaya, T. Wendell, R.A. Yasutome, K. Jenkins, S.J. McCauley, N. Mehta, P. Tarrant, A. Fukuda, Y. Itow, Y. Menjo, H. Ninomiya, K. Lagoda, J. Lakshmi, S.M. Mandal, M. Mijakowski, P. Prabhu, Y.S. Zalipska, J. Jia, M. Jiang, J. Jung, C.K. Wilking, M.J. Yanagisawa, C. Hino, Y. Ishino, H. Kitagawa, H. Kamioka Observatory Institute for Cosmic Ray Research University of Tokyo Kamioka Gifu506-1205 Japan Research Center for Cosmic Neutrinos Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Institute for Cosmic Ray Research University of Tokyo Chiba Kashiwa277-8582 Japan Department of Theoretical Physics University Autonoma Madrid Madrid28049 Spain Department of Physics Boston University BostonMA02215 United States Department of Physics British Columbia Institute of Technology BurnabyBCV5G 3H2 Canada Department of Physics and Astronomy University of California Irvine IrvineCA92697-4575 United States Department of Physics California State University Dominguez Hills CarsonCA90747 United States Institute for Universe and Elementary Particles Chonnam National University Gwangju61186 Korea Republic of Department of Physics Duke University DurhamNC27708 United States Ecole Polytechnique IN2P3 CNRS Laboratoire Leprince-Ringuet PalaiseauF-91120 France Junior College Fukuoka Institute of Technology Fukuoka Fukuoka811-0295 Japan Department of Physics Gifu University Gifu Gifu501-1193 Japan GIST College Gwangju Institute of Science and Technology Gwangju500-712 Korea Republic of Department of Physics and Astronomy University of Hawaii HonoluluHI96822 United States Daejeon34126 Korea Republic of Institute For Interdisciplinary Research in Science and Education ICISE Quy Nhon55121 Viet Nam Department of Physics Imperial College London LondonSW7 2AZ United Kingdom Dipartimento Interuniversitario di Fisica INFN Sezione di Bari Università e Politecnico di Bari BariI-70125 Italy Dipartimento di Fisica INFN Sezione di Napoli Università di Napoli NapoliI-80126 Italy Dipartimento di Fisica INFN Sezione di Padova Università di Padova PadovaI-35131 Italy INFN Sezione di Roma Università di Roma "La Sapienza" RomaI-00185 Italy ILANCE CNRS - University of Tokyo International Research Laboratory Ch

We report the first search result for the flux of astrophysical electron antineutrinos for energies O(10) MeV in the gadolinium-loaded Super-Kamiokande (SK) detector. In June 2020, gadolinium was introduced to the ultra-pure water of the SK detector in order to detect neutrons more efficiently. In this new experimental phase, SK-Gd, we can search for electron antineutrinos via inverse beta decay with efficient background rejection thanks to the high efficiency of the neutron tagging technique. In this paper, we report the result for the initial stage of SK-Gd, during August 26th, 2020, and June 1st, 2022, with a 22.5×552 kton·day exposure at 0.01% Gd mass concentration. No significant excess over the expected background in the observed events is found for the neutrino energies below 31.3 MeV. Thus, the flux upper limits are placed at the 90% confidence level. The limits and sensitivities are already comparable with the previous SK result with pure water (22.5×2970 kton·day) owing to the enhanced neutron tagging. Operation with Gd increased to 0.03% started in June 2022. © 2023, CC0.

关键词： Gadolinium

Erratum to: Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector

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Journal of High Energy Physics 2023年第12期2023卷 1-21页

作者： Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abidi, S. H. AbouZeid, O. S. Abraham, N. L. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B. S. Adachi, S. Adamczyk, L. Adelman, J. Adersberger, M. Adye, T. Affolder, A. A. Afik, Y. Agatonovic-Jovin, T. Agheorghiesei, C. Aguilar-Saavedra, J. A. Ahlen, S. P. Ahmadov, F. Aielli, G. Akatsuka, S. Akerstedt, H. Åkesson, T. P. A. Akilli, E. Akimov, A. V. Alberghi, G. L. Albert, J. Albicocco, P. Alconada Verzini, M. J. Alderweireldt, S. C. Aleksa, M. Aleksandrov, I. N. Alexa, C. Alexander, G. Alexopoulos, T. Alhroob, M. Ali, B. Aliev, M. Alimonti, G. Alison, J. Alkire, S. P. Allbrooke, B. M. M. Allen, B. W. Allport, P. P. Aloisio, A. Alonso, A. Alonso, F. Alpigiani, C. Alshehri, A. A. Alstaty, M. I. Alvarez Gonzalez, B. Álvarez Piqueras, D. Alviggi, M. G. Amadio, B. T. Amaral Coutinho, Y. Amelung, C. Amidei, D. Amor Dos Santos, S. P. Amoroso, S. Amundsen, G. Anastopoulos, C. Ancu, L. S. Andari, N. Andeen, T. Anders, C. F. Anders, J. K. Anderson, K. J. Andreazza, A. Andrei, V. Angelidakis, S. Angelozzi, I. Angerami, A. Anisenkov, A. V. Anjos, N. Annovi, A. Antel, C. Antonelli, M. Antonov, A. Antrim, D. J. Anulli, F. Aoki, M. Aperio Bella, L. Arabidze, G. Arai, Y. Araque, J. P. Araujo Ferraz, V. Arce, A. T. H. Ardell, R. E. Arduh, F. A. Arguin, J-F. Argyropoulos, S. Arik, M. Armbruster, A. J. Armitage, L. J. Arnaez, O. Arnold, H. Arratia, M. Arslan, O. Artamonov, A. Artoni, G. Artz, S. Asai, S. Asbah, N. Ashkenazi, A. Asquith, L. Assamagan, K. Astalos, R. Atkinson, M. Atlay, N. B. Augsten, K. Avolio, G. Axen, B. Ayoub, M. K. Azuelos, G. Baas, A. E. Baca, M. J. Bachacou, H. Bachas, K. Backes, M. Bagnaia, P. Bahmani, M. Bahrasemani, H. Baines, J. T. Bajic, M. Baker, O. K. Bakker, P. J. Baldin, E. M. Balek, P. Balli, F. Balunas, W. K. Banas, E. Bandyopadhyay, A. Banerjee, Sw. Bannoura, A. A. E. Barak, L. Barberio, E. L. Barberis, D. Barbero, M. Barillari, T. Barisits, M.-S. Barkeloo, J. T. Barklow, T. Barlow, N. Barnes, S. L. Barnett, B. M. Barnett, R. M. Barno Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman United States of America Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan LAL Univ. Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Department of Physics University of Toronto Toronto Canada Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz United States of America Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion: Israel Institute of Technology Haifa Israel Center for High Energy Physics University of Oregon Eugene United States of America Department of Physics Stockholm University Stockholm Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Department of Physics King’s College London London United Kingdom International Center for Elementary Particle Physics and Department of Physics The University of Tokyo Tokyo Japan AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb United States of America Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Laboratório de Instrumentação e Física Experimental de Partículas – LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos Universidad de Granada Granada Portugal Department of Physics Boston University Boston United States of America Joi

Multiwavelength monitoring of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020 37

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Multiwavelength monitoring of the gravitationally lensed bla...

37th International Cosmic Ray Conference, ICRC 2021

作者： de Palma, F. D'Ammando, F. Barnacka, A. Hada, K. Sahu, D.K. Lähteenmäki, A. Acciari, V.A. Ansoldi, S. Antonelli, L.A. Arbet Engels, A. Artero, M. Asano, K. Baack, D. Babić, A. Baquero, A. Barres de Almeida, U. Barrio, J.A. Batković, I. Becerra González, J. Bednarek, W. Bellizzi, L. Bernardini, E. Bernardos, M. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bökenkamp, H. Bonnoli, G. Bošnjak, Ž. Busetto, G. Carosi, R. Ceribella, G. Cerruti, M. Chai, Y. Chilingarian, A. Cikota, S. Colak, S.M. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D'Amico, G. D'Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Delgado Mendez, C. Depaoli, D. Di Pierro, F. Di Venere, L. Do Souto Espiñeira, E. Dominis Prester, D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Fallah Ramazani, V. Fattorini, A. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. Fukazawa, Y. García López, R.J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Gliwny, P. Godinović, N. Green, J.G. Green, D. Hadasch, D. Hahn, A. Heckmann, L. Herrera, J. Hoang, J. Hrupec, D. Hütten, M. Inada, T. Ishio, K. Iwamura, Y. Jiménez Martínez, I. Jormanainen, J. Jouvin, L. Karjalainen, M. Kerszberg, D. Kobayashi, Y. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Linhoff, L. Lombardi, S. Longo, F. López-Coto, R. López-Moya, M. López-Oramas, A. Loporchio, S. Machado de Oliveira Fraga, B. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Mariotti, M. Martínez, M. Mazin, D. Menchiari, S. Mender, S. Mićanović, S. Miceli, D. Miener, T. Miranda, J.M. Mirzoyan, R. Molina, E. Moralejo, A. Morcuende, D. Moreno, V. Moretti, E. Nakamori, T. Nava, L. Neustroev, V. Nigro, C. Nilsson, K. Nishijima, K. Noda, K. Nozaki, S. Ohtani, Y. Oka, T. Otero-Santos, J. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes, J.M. Pavletić, L. Peñil, P. Persic, M. Dipartimento di Matematica e Fisica "E. De Giorgi" Università del Salento Lecce Italy Istituto Nazionale di Fisica Nucleare Sezione di Lecce LecceI-73100 Italy INAF-IRA Bologna BolognaI-40129 Italy Smithsonian Astrophysical Observatory CambridgeMA02138 United States Astronomical Observatory Jagiellonian University ul. Orla 171 Cracow30-244 Poland Mizusawa VLBI Observatory National Astronomical Observatory of Japan 2-12 Hoshigaoka Mizusawa Iwate Oshu023-0861 Japan 2-21-1 Osawa Mitaka Tokyo181-8588 Japan Indian Institute of Astrophysics Bangalore560034 India Aalto University Metsähovi Radio Observatory Metsähovintie 114 Kylmälä02540 Finland Aalto University Department of Electronics and Nanoengineering P.O. BOX 15500 AALTOFI-00076 Finland Instituto de Astrofísica de Canarias Dpto. de Astrofísica Universidad de La Laguna Tenerife La LagunaE-38200 Spain Università di Udine INFN Trieste UdineI-33100 Italy RomeI-00136 Italy ETH Zürich ZürichCH-8093 Switzerland E-08193 Spain The University of Tokyo Chiba Kashiwa277-8582 Japan Technische Universität Dortmund DortmundD-44221 Germany Zagreb10000 Croatia IPARCOS Institute EMFTEL Department Universidad Complutense de Madrid MadridE-28040 Spain URCA RJ Rio de Janeiro22290-180 Brazil Università di Padova INFN PadovaI-35131 Italy University of Lodz Faculty of Physics and Applied Informatics Department of Astrophysics Lodz90-236 Poland Università di Siena INFN Pisa SienaI-53100 Italy ZeuthenD-15738 Germany Max-Planck-Institut für Physik MünchenD-80805 Germany Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomía s/n Granada18008 Spain Università di Pisa INFN Pisa PisaI-56126 Italy Universitat de Barcelona ICCUB IEEC-UB BarcelonaE-08028 Spain Armenian MAGIC Group A. Alikhanyan National Science Laboratory Yerevan0036 Armenia Centro de Investigaciones Energéticas Medioambientales y Tecnológicas MadridE-28040 Spain INFN MAGIC Group INFN Sezi

QSO B0218+357 is currently the only gravitationally lensed source from which very-high-energy (VHE, &100GeV) gamma-ray emission has been detected. We report the multiwavelength monitoring observations of this source performed between 2016 and 2020 in radio interferometry, optical, X-ray and gamma-ray bands. During the monitoring individual flares and hints of enhanced states in optical, X-ray and GeV bands have been observed, and the simultaneous data taken by the MAGIC telescopes allow us to search for the VHE gamma-ray emission associated with these events. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)

关键词： Germanium compounds

Earthquake swarm analysis around Bekancan area, North Sumatra, Indonesia using the BMKG network data: Time periods of February 29, 2015 to July 10, 2017

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AIP Conference Proceedings 2018年第1期1987卷

作者： Andri Dian Nugraha Pepen Supendi Sri Widiyantoro Daryono Samsul Wiyono 1Global Geophysics Research Group Faculty of Mining and Petroleum Engineering Institut Teknologi Bandung Bandung 40132 Indonesia 2Geophysical Engineering Study Program Faculty of Mining and Petroleum Engineering Institut Teknologi Bandung Bandung 40132 Indonesia 3Agency for Meteorology Climatology and Geophysics (BMKG) Bandung Indonesia 4Agency for Meteorology Climatology and Geophysics (BMKG) Jakarta Indonesia

Earthquake swarm are common occur around active tectonic and volcanic regions. The recent activities of swarm event occurred around Bekancan area, North Sumatra Province, Indonesia for February 29, 2015 to July 10, 2017 recorded by BMKG local/regional network. This location close to Sinabung and Sibayak volcanoes, lead to our intriguing to analysis of source mechanism and location of the swarm event. We attempted to update hypocenter location of BMKG data catalogue by applying double-difference method. We have successfully relocated of 152 swarm events in the area. The relocated events appear about 10 km northeast of Sinabung volcano with focus depth of about 0 to 30 km (below sea level), however very close to Sibayak volcano area. Overall, the dominant frequency of the event from the closest station is about 2 to 9 Hz. So, our preliminary interpretation is the location of swarm events close to Sinabung and Sibanyak volcanoes in Bekancan area which probably related to stress change due to volcanic-tectonic activity.

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