Search for new physics in events with same-sign dileptons and jets in pp collisions at √s = 8 TeV
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Chatrchyan-2014-Search for new physi.pdf
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Author(s)
Apyan, Aram
Busza, Wit
Cali, Ivan Amos
Chan, M.
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Gulhan, Doga Can
Klute, Markus
Lai, Yue Shi
Date Issued
January 2014
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Search for New Physics in Events with Same-Sign Dileptons and Jets in Pp Collisions at √s = 8 TeV.” J. High Energ. Phys. 2014, no. 1 (January 2014). © CERN, for the benefit of the CMS Collaboration
Version
Final published version
Abstract
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[superscript −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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. School of Science
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DOI of Published Version
https://doi.org/10.1007/JHEP01(2014)163
