Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV

	Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV
	ATLAS collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2012
卷号	72 期号:7
关键词	MODEL HIGGS-BOSON PAIR PRODUCTION LIBRARY TAUOLA CROSS-SECTION LHC PHYSICS
通讯作者	Aad, G (reprint author), SUNY Albany, Albany, NY 12222 USA.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000307269400009
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213305]
专题	高能物理研究所_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 GB/T 7714	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).