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Search for charge-asymmetric production of W ' bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊PHYSICS LETTERS B
卷号717期号:4--5页码:351-370
通讯作者Sphicas, P (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
摘要A search is presented for charge-asymmetric production of a W' boson that has been proposed to accommodate the forward-backward asymmetry observed in the production of top-antitop quark pairs at the Tevatron. The new heavy W' boson would be produced in association with a top quark and would decay into top and down quarks. The data correspond to an integrated luminosity of 5.0 fb(-1) in pp collisions at a center-of-mass energy of 7 TeV, recorded by the CMS detector at the LHC. No significant excess above the standard model expectations is observed, and, from a combination of the electron-plus-jets and muon-plus-jets channels, a 95% confidence level lower limit of 840 GeV/c(2) is set on the W' boson mass for a W' boson model with values for coupling constants to top and down quarks g(L) = 0 and g(R) = 2. In addition, a kinematic reconstruction of the W' resonance mass using the inherent charge asymmetry of this model finds no indication of the presence of W' events in the data. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
学科领域Physics
DOI10.1016/j.physletb.2012.09.048
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000310863300009
引用统计
被引频次:17[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/311005/213381
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for charge-asymmetric production of W ' bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV[J]. PHYSICS LETTERS B,2012,717(4--5):351-370.
APA CMS Collaboration.(2012).Search for charge-asymmetric production of W ' bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV.PHYSICS LETTERS B,717(4--5),351-370.
MLA CMS Collaboration."Search for charge-asymmetric production of W ' bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV".PHYSICS LETTERS B 717.4--5(2012):351-370.
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