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Measurement of the (B)over-bar -> X-s gamma branching fraction with a sum of exclusive decays

Authors
Saito, T.Ishikawa, A.Yamamoto, H.Abdesselam, A.Adachi, I.Aihara, H.Al Said, S.Arinstein, K.Asner, D. M.Aushev, T.Ayad, R.Bakich, A. M.Bansal, V.Bhuyan, B.Bobrov, A.Bondar, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chen, A.Cheon, B. G.Chilikin, K.Cho, K.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Dalseno, J.Danilov, M.Dingfelder, J.Dolezal, Z.Drasal, Z.Drutskoy, A.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Gaur, V.Gabyshev, N.Ganguly, S.Garmash, A.Getzkow, D.Gillard, R.Goh, Y. M.Golob, B.Haba, J.Hara, T.Hasenbusch, J.Hayasaka, K.Hayashii, H.He, X. H.Higuchi, T.Horiguchi, T.Hou, W. -S.Hyun, H. J.Iijima, T.Inami, K.Itoh, R.Iwasaki, Y.Jaegle, I.Joffe, D.Julius, T.Kang, K. H.Kato, E.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, D. Y.Kim, H. J.Kim, J. B.Kim, J. H.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Ko, B. R.Kodys, P.Korpar, S.Krizan, P.Krokovny, P.Kronenbitter, B.Kuhr, T.Kwon, Y. -J.Lange, J. S.Lee, I. S.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lukin, P.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moll, A.Mori, T.Mussa, R.Nakano, E.Nakao, M.Nakazawa, H.Nanut, T.Natkaniec, Z.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Olsen, S. L.Oswald, C.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Ribezl, E.Ritter, M.Rostomyan, A.Ryu, S.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Schwartz, A. J.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Sohn, Y. -S.Solovieva, E.Staric, M.Steder, M.Sumiyoshi, T.Tamponi, U.Tatishvili, G.Teramoto, Y.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Usov, Y.Van Hulse, C.Vanhoefer, P.Varner, G.Vinokurova, A.Vorobyev, V.Vossen, A.Wagner, M. N.Wang, C. H.Wang, P.Wang, X. L.Watanabe, M.Watanabe, Y.Williams, K. M.Won, E.Yamaoka, J.Yashchenko, S.Yook, Y.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
Issue Date
4-3월-2015
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.91, no.5
Indexed
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
91
Number
5
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/94159
DOI
10.1103/PhysRevD.91.052004
ISSN
2470-0010
Abstract
We use 772 x 10(6) B (B) over bar meson pairs collected at the gamma(4S) resonance with the Belle detector to measure the branching fraction for (B) over bar -> X-s gamma Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final states with strangeness equal to +1, denoted by X-s, are reconstructed. The inclusive branching fraction for M-Xs < 2.8 GeV/c(2), which corresponds to a minimum photon energy of 1.9 GeV, is measured to be B(<(B)over bar> -> X-s gamma) = (3.51 +/- 0.17 +/- 0.33) x 10(-4), where the first uncertainty is statistical and the second is systematic.
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