Search for the radiative penguin decays B-0 -> (KSKS0)-K-0 gamma in the Belle experiment

H. B. Jeon,K. H. Kang,H. Park,I Adachi, H. Aihara,S. Al Said,D. M. Asner, H. Atmacan,T. Aushev, R. Ayad, V Babu,S. Bahinipati,P. Behera, K. Belous,J. Bennett,F. Bernlochner, M. Bessner, V Bhardwaj,B. Bhuyan, T. Bilka,A. Bobrov,D. Bodrov, J. Borah,A. Bozek, M. Bracko, P. Branchini,T. E. Browder, A. Budano, M. Campajola, D. Cervenkov,M-C Chang,P. Chang,A. Chen,B. G. Cheon, K. Chilikin,H. E. Cho,K. Cho,S-J Cho,S-K Choi,Y. Choi,S. Choudhury,D. Cinabro,S. Cunliffe,S. Das,N. Dash,G. De Pietro,R. Dhamija,F. Di Capua, J. Dingfelder,Z. Dolezal,T. Dong,D. Epifanov, T. Ferber, D. Ferlewicz,B. G. Fulsom,R. Garg,V Gaur, N. Gabyshev,A. Giri, P. Goldenzweig, B. Golob, E. Graziani,T. Gu, K. Gudkova, C. Hadjivasiliou, T. Hara, K. Hayasaka,H. Hayashii, M. T. Hedges,T. Higuchi,W-S Hou,C-L Hsu, K. Inami, G. Inguglia,A. Ishikawa, R. Itoh,M. Iwasaki, Y. Iwasaki,W. W. Jacobs,E-J Jang,S. Jia,Y. Jin,K. K. Joo,J. Kahn, H. Kakuno,A. B. Kaliyar, T. Kawasaki, C. Kiesling, C. H. Kim,D. Y. Kim,K-H Kim,K. T. Kim,Y-K Kim,K. Kinoshita, P. Kodys,T. Konno, A. Korobov, S. Korpar, E. Kovalenko, P. Krizan,R. Kroeger, P. Krokovny, T. Kuhr,M. Kumar,K. Kumara, A. Kuzmin,Y-J Kwon,Y-T Lai, K. Lalwani,T. Lam, J. S. Lange, M. Laurenza,S. C. Lee,C. H. Li, J. Li,Y. Li,Y. B. Li,L. Li Gioi, J. Libby, K. Lieret, D. Liventsev, A. Martini,M. Masuda,T. Matsuda, D. Matvienko, S. K. Maurya,M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, M. Nakao, D. Narwal, Z. Natkaniec,A. Natochii, L. Nayak, M. Nayak,N. K. Nisar, S. Nishida,K. Ogawa,S. Ogawa,H. Ono, Y. Onuki, P. Oskin, P. Pakhlov, G. Pakhlova,T. Pang, S. Pardi,S-H Park, A. Passeri,S. Patra,S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, T. Podobnik,V Popov, E. Prencipe, M. T. Prim,M. Purohit, M. Rohrken, A. Rostomyan,N. Rout,G. Russo,D. Sahoo, S. Sandilya, A. Sangal, L. Santelj, T. Sanuki, V Savinov, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin,C. Sharma, V Shebalin, C. P. Shen,J-G Shiu, J. B. Singh, A. Sokolov,E. Solovieva, M. Staric,Z. S. Stottler, J. F. Strube, M. Sumihama, T. Sumiyoshi,M. Takizawa,U. Tamponi, K. Tanida, F. Tenchini,M. Uchida,T. Uglov, Y. Unno,S. Uno, P. Urquijo,Y. Usov, S. E. Vahsen,R. Van Tonder, G. Varner, K. E. Varvell, A. Vinokurova,A. Vossen, E. Waheed,C. H. Wang,M-Z Wang, S. Watanuki, E. Won, B. D. Yabsley,W. Yan, S. B. Yang,H. Ye, J. Yelton, J. H. Yin, C. Z. Yuan, Y. Yusa, Y. Zhai, Z. P. Zhang,V Zhilich,V Zhukova

PHYSICAL REVIEW D（2022）

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摘要

We report results from the first search for the rare penguin-dominated decay mode B-0 -> (KSKS0)-K-0 gamma, which can result from the production of tensor mesons f(1270) and f'(1525) in association with a photon. The search uses the full data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. No statistically significant signals are observed in the (KSKS0)-K-0 invariant mass range 1 GeV/c(2) < M-KS0KS0 < 3 GeV/c(2), and the following upper limits at the 90% confidence level are obtained: B(B-0 -> (KSKS0)-K-0 gamma) < 5.8 x 10(-7), B(B-0 -> f (2)gamma) x B(f(2) (1270) -> (KSKS0)-K-0) < 3.1 x 10(-7), and B(B-0 -> f(2 gamma)') x B(f(2)'(1525) -> (KSKS0)-K-0) < 2.1 x 10(-7). In addition, 90% confidence-level upper limits in the range of [0.7-2.9] x 10(-7) are also obtained on the B-0 -> (KSKS0)-K-0 gamma branching fraction in bins of M (KS0KS0).

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