中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Measurement of electroweak-induced production of W gamma with two jets in pp collisions at root s=8TeV and constraints on anomalous quartic gauge couplings

文献类型:期刊论文

作者CMS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
出版日期2017
期号6页码:106
关键词Electroweak interaction Hadron-Hadron scattering (experiments) proton-proton scattering
ISSN号1029-8479
DOI10.1007/JHEP06(2017)106
文献子类Article
英文摘要A measurement of electroweak-induced production of W gamma and two jets is performed, where the W boson decays leptonically. The data used in the analysis correspond to an integrated luminosity of 19.7 fb(-1) collected by the CMS experiment in root s = 8TeV proton-proton collisions produced at the LHC. Candidate events are selected with exactly one muon or electron, missing transverse momentum, one photon, and two jets with large rapidity separation. An excess over the hypothesis of the standard model without electroweak production of W gamma with two jets is observed with a signi fi cance of 2.7 standard deviations. The cross section measured in the fi ducial region is 10.8 +/- 4.1(stat) +/- 3.4(syst) +/- 0. 3(lumi) fb, which is consistent with the standard model electroweak prediction. The total cross section for W gamma in association with two jets in the same fi ducial region is measured to be 23.2 +/- 4.3(stat) +/- 1.7(syst) +/- 0.6(lumi) fb, which is consistent with the standard model prediction from the combination of electroweakand quantum chromodynamics-induced processes. No deviations are observed from the standard model predictions and experimental limits on anomalous quartic gauge couplings integral M,0- 7 /Lambda(4), integral T,0- 2 /Lambda(4), and integral T,5-7/Lambda(4) are set at 95% con fi dence level.
WOS关键词HYPOTHESES ; BOSON ; LHC
WOS研究方向Physics
语种英语
WOS记录号WOS:000404141800007
源URL[http://ir.ihep.ac.cn/handle/311005/284433]  
专题高能物理研究所_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. Measurement of electroweak-induced production of W gamma with two jets in pp collisions at root s=8TeV and constraints on anomalous quartic gauge couplings[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(6):106.
APA CMS Collaboration.(2017).Measurement of electroweak-induced production of W gamma with two jets in pp collisions at root s=8TeV and constraints on anomalous quartic gauge couplings.JOURNAL OF HIGH ENERGY PHYSICS(6),106.
MLA CMS Collaboration."Measurement of electroweak-induced production of W gamma with two jets in pp collisions at root s=8TeV and constraints on anomalous quartic gauge couplings".JOURNAL OF HIGH ENERGY PHYSICS .6(2017):106.

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来源:高能物理研究所

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