Search for new physics in same-sign dilepton events in proton-proton collisions at √s = 13 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
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 13TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 fb1. 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 W boson candidate, the number of jets, the number of b 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 680GeV, respectively, at the 95 % confidence level. Upper limits on the cross sections for the production of two top quark-antiquark pairs (119fb) and two same-sign top quarks (1.7pb) are also obtained. Selection efficiencies and model independent limits are provided to allow further interpretations of the results.
Date Issued
2016-08-05
Date Acceptance
2016-07-12
Citation
European Physical Journal C, 2016, 76
ISSN
1434-6052
Publisher
Springer Verlag (Germany): SCOAP3
Journal / Book Title
European Physical Journal C
Volume
76
Copyright Statement
© CERN for the benefit of the CMS collaboration 2016. This article is published with open access at Springerlink.com. The final publication is available at Springer via http://dx.doi.org/10.1140/epjc/s10052-016-4261-z
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000381184000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
GLUINO PRODUCTION
SUPERGAUGE TRANSFORMATIONS
SUPERSYMMETRY
SQUARK
MODEL
EXTENSION
INVARIANT
SIGNATURE
NEUTRINO
Nuclear & Particles Physics
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics
Publication Status
Published
Article Number
ARTN 439