Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays
Belle Collaboration
刊名PHYSICAL REVIEW LETTERS
2013
卷号111期号:11
关键词PHOTOS MONTE-CARLO
学科分类Physics
DOI10.1103/PhysRevLett.111.112001
通讯作者Sandilya, S (reprint author), Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India.
英文摘要We search for bottomonium states in gamma(2S) -> (b (b) over bar)gamma decays with an integrated luminosity of 24.7 fb(-1) recorded at the gamma(2S) resonance with the Belle detector at KEK, containing (157.8 +/- 3.6) x 10(6) gamma(2S) events. The (b (b) over bar) system is reconstructed in 26 exclusive hadronic final states composed of charged pions, kaons, protons, and K-0(S) mesons. We find no evidence for the state recently observed around 9975 MeV (X-b (b) over bar) in an analysis based on a data sample of 9.3 x 10(6) gamma(2S) events collected with the CLEO III detector. We set a 90% confidence level upper limit on the branching fraction B[gamma(2S) -> X-b (b) over bar gamma] x Sigma(i) B[X-b (b) over bar -> h(i)] < 4.9 x 10(-6), summed over the exclusive hadronic final states employed in our analysis. This result is an order of magnitude smaller than the measurement reported with CLEO data. We also set an upper limit for the eta(b)(1S) state of B[gamma(2S) -> eta(b)(1S)gamma] x Sigma B-i[eta(b)(1S) -> h(i)] < 3.7 x 10(-6).
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000324229900004
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213598
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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Belle Collaboration. Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays[J]. PHYSICAL REVIEW LETTERS,2013,111(11).
APA Belle Collaboration.(2013).Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays.PHYSICAL REVIEW LETTERS,111(11).
MLA Belle Collaboration."Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays".PHYSICAL REVIEW LETTERS 111.11(2013).
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