Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at root s=7 TeV
CMS Collaboration
刊名PHYSICAL REVIEW LETTERS
2011
卷号106期号:20
学科分类Physics
DOI10.1103/PhysRevLett.106.201802
通讯作者Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要A search for pair production of first-generation scalar leptoquarks is performed in the final state containing two electrons and two jets using proton-proton collision data at root s = 7 TeV. The data sample used corresponds to an integrated luminosity of 33 pb(-1) collected with the CMS detector at the CERN LHC. The number of observed events is in good agreement with the predictions for the standard model background processes, and an upper limit is set on the leptoquark pair production cross section times beta(2) as a function of the leptoquark mass, where beta is the branching fraction of the leptoquark decay to an electron and a quark. A 95% confidence level lower limit is set on the mass of a first-generation scalar leptoquark at 384 GeV for beta = 1, which is the most stringent direct limit to date.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000290729400004
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被引频次:22[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/311005/213045
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at root s=7 TeV[J]. PHYSICAL REVIEW LETTERS,2011,106(20).
APA CMS Collaboration.(2011).Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at root s=7 TeV.PHYSICAL REVIEW LETTERS,106(20).
MLA CMS Collaboration."Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at root s=7 TeV".PHYSICAL REVIEW LETTERS 106.20(2011).
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