Yokoyama Masashi

ヨコヤママサシ | Yokoyama Masashi

Affiliation and department：
Job title：教授
Homepage URL (1)： http://hep.phys.s.u-tokyo.ac.jp/masashi/

Research field (1)： Particle, nuclear, cosmic-ray, and astrophysics - experiment

Research keywords (5)： proton decay , CP violation , neutrino , particle physics experiment , 素粒子物理実験

Research theme for competitive and other funds (16)：

2025 - 2030 Exploring New Frontiers in Neutrino Physics with Hyper-Kamiokande
2016 - 2021 Measurement of CP symmetry of neutrino by upgrading T2K experiment
2014 - 2019 Precision measurements of neutrino-nucleus interaction towards understanding of neutrino mixing matrix
2013 - 2018 Development of the Neutrino Frontier by an accelerator neutrino beam
2013 - 2018 Probing the neutrino mass hierarchy with atmospheric neutrinos and developing the next-generation research frontier

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Papers (595)：

Yokoyama, Masashi. Observation of large $CP$ violation in the neutral $B$ meson system using $B^0 \to J/\psi K_L$ decay. 2024
H. Oshima, T. Matsuo, A. Ali, S. Aoki, L. Berns, T. Fukuda, Y. Hanaoka, Y. Hayato, A. Hiramoto, A. K. Ichikawa, et al. Measurements of protons and charged pions emitted from νμ charged-current interactions on iron at a mean neutrino energy of 1.49 GeV using a nuclear emulsion detector. Physical Review D. 2022. 106. 3
Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., Kameda, J., Kataoka, Y., Miura, M., Moriyama, S., et al. Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV. Astropart.Phys. 2022. 139. 102702-102702
Orii, A., Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., Kameda, J., Kataoka, Y., Kato, Y., et al. Search for tens of MeV neutrinos associated with gamma-ray bursts in Super-Kamiokande. PTEP. 2021. 2021. 10
Abe, K., Adrich, P., Aihara, H., Akutsu, R., Alekseev, I., Ali, A., Ameli, F., Anghel, I., Anthony, L.H. V., Antonova, M., et al. Supernova Model Discrimination with Hyper-Kamiokande. Astrophys.J. 2021. 916. 1. 15-15

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MISC (31)：

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Education (2)：

Work history (4)：

2019/12 - 現在 The University of Tokyo Graduate School of Science Department of Physics Professor
2009/11 - 2019/12 The University of Tokyo Graduate School of Science Department of Physics
2007/04 - 2009/10 Kyoto University Graduate School of Science Division of Physics and Astronomy
2003/02 - 2007/03 Kyoto University Graduate School of Science Division of Physics and Astronomy

Awards (1)：

Association Membership(s) (1)：

日本物理学会

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