Search for new physics in events with same-sign dileptons and jets in pp collisions at s√ = 8 TeV

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Issue Date
2014-01Author
CMS Collaboration
Bean, Alice
Publisher
Springer Verlag
Type
Article
Article Version
Scholarly/refereed, publisher version
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Show full item recordAbstract
A search for new physics is performed based on events with jets and a pair of isolated, same-sign leptons. The results are obtained using a sample of proton-proton collision data collected by the CMS experiment at a centre-of-mass energy of 8 TeV at the LHC, corresponding to an integrated luminosity of 19.5 fb−1. In order to be sensitive to a wide variety of possible signals beyond the standard model, multiple search regions defined by the missing transverse energy, the hadronic energy, the number of jets and b-quark jets, and the transverse momenta of the leptons in the events are considered. No excess above the standard model background expectation is observed and constraints are set on a number of models for new physics, as well as on the same-sign top-quark pair and quadruple-top-quark production cross sections. Information on event selection efficiencies is also provided, so that the results can be used to confront an even broader class of new physics models.
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This is the published version.
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Citation
The CMS collaboration. "Search for new physics in events with same-sign dileptons and jets in pp collisions at s√ = 8 TeV." Journal of High Energy Physics. January, 2014: v5 n1. http://dx.doi.org/10.1007/JHEP01(2014)163
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