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Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV
ATLAS collaboration
2012
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号72期号:7
通讯作者Aad, G (reprint author), SUNY Albany, Albany, NY 12222 USA.
摘要In this paper, a measurement of tau polarization in W -> tau nu decays is presented. It is measured from the energies of the decay products in hadronic tau decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb(-1), were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the tau polarization is P-tau = -1.06 +/- 0.04 (stat)(-0.07)(+0.05) (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [-1,-0.91]. Measurements of tau polarization have not previously been made at hadron colliders.
关键词MODEL HIGGS-BOSON PAIR PRODUCTION LIBRARY TAUOLA CROSS-SECTION LHC PHYSICS
学科领域Physics
DOI10.1140/epjc/s10052-012-2062-6
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000307269400009
引用统计
被引频次:7[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/311005/213305
专题实验物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
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ATLAS collaboration. Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2012,72(7).
APA ATLAS collaboration.(2012).Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV.EUROPEAN PHYSICAL JOURNAL C,72(7).
MLA ATLAS collaboration."Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV".EUROPEAN PHYSICAL JOURNAL C 72.7(2012).
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