Search for η^{'} Bound Nuclei in the ^{12}C(γ,p) Reaction with Simultaneous Detection of Decay Products

Search for η^{'} Bound Nuclei in the ^{12}C(γ,p) Reaction with Simultaneous Detection of Decay Products

We measured missing mass spectrum of the ^{12}C(γ,p) reaction for the first time in coincidence with potential decay products from η^{'} bound nuclei. We tagged an (η+p) pair associated with the η^{'}N→ηN process in a nucleus. After applying kinematical selections to reduce backgrounds, no...

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Veröffentlicht in:Physical review letters 2020-05, Vol.124 (20), p.202501-202501
Hauptverfasser: Tomida, N, Muramatsu, N, Niiyama, M, Ahn, J K, Chang, W C, Chen, J Y, Chu, M L, Daté, S, Gogami, T, Goto, H, Hamano, H, Hashimoto, T, He, Q H, Hicks, K, Hiraiwa, T, Honda, Y, Hotta, T, Ikuno, H, Inoue, Y, Ishikawa, T, Jaegle, I, Jo, J M, Kasamatsu, Y, Katsuragawa, H, Kido, S, Kon, Y, Maruyama, T, Masumoto, S, Matsumura, Y, Miyabe, M, Mizutani, K, Nagahiro, H, Nakamura, T, Nakano, T, Nam, T, Ngan, T N T, Nozawa, Y, Ohashi, Y, Ohnishi, H, Ohta, T, Ozawa, K, Rangacharyulu, C, Ryu, S Y, Sada, Y, Sasagawa, M, Shibukawa, T, Shimizu, H, Shirai, R, Shiraishi, K, Strokovsky, E A, Sugaya, Y, Sumihama, M, Suzuki, S, Tanaka, S, Tokiyasu, A, Tsuchikawa, Y, Ueda, T, Yamazaki, H, Yamazaki, R, Yanai, Y, Yorita, T, Yoshida, C, Yosoi, M
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Sprache:eng
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Zusammenfassung:We measured missing mass spectrum of the ^{12}C(γ,p) reaction for the first time in coincidence with potential decay products from η^{'} bound nuclei. We tagged an (η+p) pair associated with the η^{'}N→ηN process in a nucleus. After applying kinematical selections to reduce backgrounds, no signal events were observed in the bound-state region. An upper limit of the signal cross section in the opening angle cosθ_{lab}^{ηp}
ISSN:1079-7114
DOI:10.1103/PhysRevLett.124.202501