Measurement of the B ¯ →xsγ branching fraction with a sum of exclusive decays MEASUREMENT of THE. T. SAITO et al.

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Title:	Measurement of the B ¯ →xsγ branching fraction with a sum of exclusive decays MEASUREMENT of THE. T. SAITO et al.
Authors:	陳鎰鋒;Saito, T.;Yamamoto, H.;Adachi, I.;Said, S. Al;Asner, D. M.;Aushev, T.;Ayad, R.;Bakich, A. M.;Bhuyan, B.;Bobrov, A.;Bonvicini, G.;Bozek, A.;Červenkov, D.;Chen, A.;Cheon, B. G.;Chilikin, K.;Cho, K.;Cinabro, D.;Dingfelder, J.;Doležal, Z.;Drásal, Z.;Drutskoy, A.;Eidelman, S.;Fast, J. E.;Gaur, V.;Gabyshev, N.;Ganguly, S.;Gillard, R.;Golob, B.;Haba, J.;Hara, T.;Hayasaka, K.;Horiguchi, T.;Hou, W.-S.;Iijima, T.;Itoh, R.;Iwasaki, Y.;Jaegle, I.;Joffe, D.;Kichimi, H.;Kiesling, C.;Kim, D. Y.;Kim, M. J.;Kim, S. H.;Kim, Y. J.;Kinoshita, K.;Ko, B. R.;Križan, P.;Krokovny, P.;Kwon, Y.-J.;Lange, J. S.;Lee, I. S.;Liventsev, D.;Lukin, P.;Miyata, H.;Mizuk, R.;Mohanty, G. B.;Nakano, E.;Nakao, M.;Nanut, T.;Nisar, N. K.;Nishida, S.;Olsen, S. L.;Pakhlov, P.;Park, H.;Pestotnik, R.;Petrič, M.;Ritter, M.;Rostomyan, A.;Sandilya, S.;Santelj, L.;Sanuki, T.;Sato, Y.;Savinov, V.;Schnell, G.;Schwartz, A. J.;Sevior, M. E.;Shen, C. P.;Shibata, T.-A.;Shiu, J.-G.;Shwartz, B.;Sibidanov, A.;Sohn, Y.-S.;Starič, M.;Steder, M.;Sumiyoshi, T.;Tamponi, U.;Tatishvili, G.;Uno, S.;Urquijo, P.;Usov, Y.;Vanhoefer, P.;Vorobyev, V.;Vossen, A.;Wang, P.;Wang, X. L.;Watanabe, Y.;Williams, K. M.;Yamaoka, J.;Yashchenko, S.
Contributors:	理學院物理學系
Date:	2015-03-04
Issue Date:	2026-04-23 12:12:21 (UTC+8)
Publisher:	American Physical Society;American Physical Society (APS)
Abstract:	摘要： We use 772×106 BB¯ meson pairs collected at the ?(4S) resonance with the Belle detector to measure the branching fraction for B¯→Xsγ. Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final states with strangeness equal to +1, denoted by Xs, are reconstructed. The inclusive branching fraction for MXs<2.8GeV/c2, which corresponds to a minimum photon energy of 1.9 GeV, is measured to be B(B¯→Xsγ)=(3.51±0.17±0.33)×10-4, where the first uncertainty is statistical and the second is systematic. 出版者： American Physical Society (APS) 出版日期： 2015-03-04 出處： Physical Review D, 2015-03, Vol.91 (5) 識別號： ISSN: 1550-7998 識別號： DOI: 10.1103/physrevd.91.052004
Appears in Collections:	[Department of Physics] journal & Dissertation

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