Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector

	Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector
	Atlas Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2012
期号	12
关键词	CHARGED HIGGS BOSONS NUMBER-VIOLATING PROCESSES MAJORANA NEUTRINO MASSES LEFT-RIGHT SYMMETRY PP COLLISIONS PARTON DISTRIBUTIONS LHC MODEL PHYSICS
通讯作者	Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
英文摘要	An inclusive search for anomalous production of two prompt, isolated leptons with the same electric charge is presented. The search is performed in a data sample corresponding to 4.7 fb(-1) of integrated luminosity collected in 2011 at root s = 7TeV with the ATLAS detector at the LHC. Pairs of leptons (e(+/-)e(+/-), e(+/-)mu(+/-), and mu(+/-)mu(+/-)) with large transverse momentum are selected, and the dilepton invariant mass distribution is examined for any deviation from the Standard Model expectation. No excess is found, and upper limits on the production cross section of like-sign lepton pairs from physics processes beyond the Standard Model are placed as a function of the dilepton invariant mass within a fiducial region close to the experimental selection criteria. The 95% confidence level upper limits on the cross section of anomalous e(+/-)e(+/-), e(+/-)mu(+/-), or mu(+/-)mu(+/-) production range between 1.7 fb and 64 fb depending on the dilepton mass and flavour combination.
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:000313123800007
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213420]
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. Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(12).
APA	Atlas Collaboration.(2012).Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(12).
MLA	Atlas Collaboration."Search for anomalous production of prompt like-sign lepton pairs at root s=7 TeV with the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .12(2012).