Search for stealth supersymmetry in events with jets, either photons or leptons, and low missing transverse momentum in pp collisions at 8 TeV
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Khachatryan-2015-Search for stealth s.pdf
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978.97 KB
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Author(s)
Apyan, Aram
Barbieri, Richard Alexander
Busza, Wit
Cali, Ivan Amos
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Gulhan, Doga Can
Klute, Markus
Lai, Yue Shi
Date Issued
April 2015
Journal
Physics Letters B
Citation
Khachatryan, V., et al. “Search for Stealth Supersymmetry in Events with Jets, Either Photons or Leptons, and Low Missing Transverse Momentum in Pp Collisions at 8 TeV.” Physics Letters B 743 (April 2015): 503–525.
Version
Final published version
Abstract
The results of a search for new physics in final states with jets, either photons or leptons, and low missing transverse momentum are reported. The study is based on a sample of proton–proton collisions collected at a center-of-mass energy √s = 8 TeV with the CMS detector in 2012. The integrated luminosity of the sample is 19.7 fb[superscript −1]. Many models of new physics predict the production of events with jets, electroweak gauge bosons, and little or no missing transverse momentum. Examples include stealth models of supersymmetry (SUSY), which predict a hidden sector at the electroweak energy scale in which SUSY is approximately conserved. The data are used to search for stealth SUSY signatures in final states with either two photons or an oppositely charged electron and muon. No excess is observed with respect to the standard model expectation, and the results are used to set limits on squark pair production in the stealth SUSY framework.
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/10.1016/j.physletb.2015.03.017
