Search for heavy Majorana neutrinos in mu(+/-)mu(+/-) + jets events inproton-proton collisions at root s=8TeV
CMS Collaboration
刊名PHYSICS LETTERS B
2015
卷号748页码:144-166
关键词CMS Physics Heavy neutrino
学科分类Astronomy & Astrophysics; Physics
DOI10.1016/j.physletb.2015.06.070
文章类型Article
英文摘要A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two muons of the same charge and two jets (mu(+/-)mu(+/-)jj). The data correspond to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at a center-of-mass energy of 8TeV, collected with the CMS detector at the CERN LHC. No excess of events is observed beyond the expected standard model background and upper limits are set on vertical bar V-mu N vertical bar(2) as a function of Majorana neutrino mass mN for masses in the range of 40-500GeV, where V-mu N is the mixing element of the heavy neutrino with the standard model muon neutrino. The limits obtained are vertical bar V-mu N vertical bar(2) < 0.00470 for m(N) = 90GeV, vertical bar V-mu N vertical bar(2) < 0.0123 for m(N) = 200GeV, and vertical bar V-mu N vertical bar(2) < 0.583 for m(N) = 500 GeV. These results extend considerably the regions excluded by previous direct searches. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V.
类目[WOS]Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000359146200025
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被引频次:39[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/311005/228646
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
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CMS Collaboration. Search for heavy Majorana neutrinos in mu(+/-)mu(+/-) + jets events inproton-proton collisions at root s=8TeV[J]. PHYSICS LETTERS B,2015,748:144-166.
APA CMS Collaboration.(2015).Search for heavy Majorana neutrinos in mu(+/-)mu(+/-) + jets events inproton-proton collisions at root s=8TeV.PHYSICS LETTERS B,748,144-166.
MLA CMS Collaboration."Search for heavy Majorana neutrinos in mu(+/-)mu(+/-) + jets events inproton-proton collisions at root s=8TeV".PHYSICS LETTERS B 748(2015):144-166.
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