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J-GLOBAL ID：200901047872614162   Update date: Feb. 05, 2025

Yokoyama Masashi

ヨコヤマ マサシ | Yokoyama Masashi
Affiliation and department：
東京大学

About 東京大学


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  (15)：
  • 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
  • 2012 - 2017 Experimental Study of Neutrino CP Violation by using an Accelerator Neutrino Beam
Show all
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)：
  • 1997 - 2002 The University of Tokyo
  • 1995 - 1997 The University of Tokyo Faculty of Science Department of Physics
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)：
  • 2002 - 第4回高エネルギー物理学若手奨励賞
Association Membership(s) (1)：
日本物理学会
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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