Search for displaced supersymmetry in events with an electron and a muon with large impact parameters
Type :
Article
Publication Status :
published
Access :
restrictedAccess
Abstract
A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at s√=8 TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of 19.7 fb−1. Events are selected with an electron and muon with opposite charges that both have transverse impact parameter values between 0.02 and 2 cm. The search has been designed to be sensitive to a wide range of models with nonprompt e−μ final states. Limits are set on the “displaced supersymmetry” model, with pair production of top squarks decaying into an e−μ final state via R-parity-violating interactions. The results are the most restrictive to date on this model, with the most stringent limit being obtained for a top squark lifetime corresponding to cτ=2 cm, excluding masses below 790 GeV at 95% confidence level.
Source :
Physical Review Letters
Date :
2015-02-13
Volume :
114
Issue :
6
Publisher :
American Physical Society
URI
http://hdl.handle.net/10679/4400http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.061801
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