Observation of a New X-b State in Radiative Transitions to Y(1S) and Y(2S) at ATLAS
ATLAS collaboration
刊名PHYSICAL REVIEW LETTERS
2012
卷号108期号:15
关键词BOUND-STATES QUARKONIUM COLLISIONS DECAYS TEV
学科分类Physics
DOI10.1103/PhysRevLett.108.152001
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Freiberg, Germany.
英文摘要The chi(b)(np) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at root s=7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb(-1), these states are reconstructed through their radiative decays to Y(1S,2S) with Y ->mu(+)mu(-). In addition to the mass peaks corresponding to the decay modes chi(b)(1P,2P)-> Y(1S)gamma, a new structure centered at a mass of 10.530 +/- 0.005(stat)+/- 0.009(syst) GeV is also observed, in both the Y(1S)gamma and Y(2S)gamma decay modes. This structure is interpreted as the chi(b)(3P) system.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000302635600005
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被引频次:117[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/311005/213208
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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ATLAS collaboration. Observation of a New X-b State in Radiative Transitions to Y(1S) and Y(2S) at ATLAS[J]. PHYSICAL REVIEW LETTERS,2012,108(15).
APA ATLAS collaboration.(2012).Observation of a New X-b State in Radiative Transitions to Y(1S) and Y(2S) at ATLAS.PHYSICAL REVIEW LETTERS,108(15).
MLA ATLAS collaboration."Observation of a New X-b State in Radiative Transitions to Y(1S) and Y(2S) at ATLAS".PHYSICAL REVIEW LETTERS 108.15(2012).
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