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Search for new physics in same-sign dilepton events in proton-proton collisions at
CMS Collaboration
2016
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号76期号:8
文章类型Article
摘要A search for new physics is performed using events with two isolated same-sign leptons, two or more jets, and missing transverse momentum. The results are based on a sample of proton-proton collisions at a center-of-mass energy of 13 recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 . Multiple search regions are defined by classifying events in terms of missing transverse momentum, the scalar sum of jet transverse momenta, the transverse mass associated with a boson candidate, the number of jets, the number of quark jets, and the transverse momenta of the leptons in the event. The analysis is sensitive to a wide variety of possible signals beyond the standard model. No excess above the standard model background expectation is observed. Constraints are set on various supersymmetric models, with gluinos and bottom squarks excluded for masses up to 1300 and 680, respectively, at the 95 % confidence level. Upper limits on the cross sections for the production of two top quark-antiquark pairs (119) and two same-sign top quarks (1.7) are also obtained. Selection efficiencies and model independent limits are provided to allow further interpretations of the results.
DOI10.1140/epjc/s10052-016-4261-z
关键词[WOS]GLUINO PRODUCTION ; SUPERGAUGE TRANSFORMATIONS ; SUPERSYMMETRY ; SQUARK ; MODEL ; EXTENSION ; INVARIANT ; SIGNATURE ; NEUTRINO
语种英语
WOS记录号WOS:000381184000001
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260735
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 new physics in same-sign dilepton events in proton-proton collisions at[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(8).
APA CMS Collaboration.(2016).Search for new physics in same-sign dilepton events in proton-proton collisions at.EUROPEAN PHYSICAL JOURNAL C,76(8).
MLA CMS Collaboration."Search for new physics in same-sign dilepton events in proton-proton collisions at".EUROPEAN PHYSICAL JOURNAL C 76.8(2016).
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