Detection of nuclear de-excitation gamma-rays in water Cherenkov detector

K. Kobayashi, Y. Itow, M. Shiozawa, M. Yosoi, H. Toyokawa, H. Akimune, H. Ejiri, H. Fujimura, M. Fujiwara, K. Hara, K. Y. Hara, T. Ishikawa, M. Itoh, T. Kawabata, M. Nakamura, H. Sakaguchi, Y. Sakemi, H. Takeda, M. Uchida, T. YamadaY. Yasuda, H. P. Yoshida, R. G.T. Zegers

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We measured de-excitation gamma-rays from 15N* s-hole state via the 16O(p,2p)15N reaction. The emission probabilities for more than 6 MeV and 3-6 MeV gamma-rays are estimated to be 3% and 5% respectively. This result is useful for tagging nucleon decay via p → ν̄K+ in Super-Kamiokande and neutrino neutral current interaction study.

Original languageEnglish
Pages (from-to)72-76
Number of pages5
JournalNuclear Physics B - Proceedings Supplements
Issue number1-3 SPEC. ISS.
Publication statusPublished - 2005 Feb


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