Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-EXO-12-037 | ||
| Search for long-lived particles decaying to final states that include dileptons | ||
| CMS Collaboration | ||
| February 2015 | ||
| Abstract: A search has been performed for long-lived particles, which decay to a final state that includes a pair of leptons ($e^+e^-$ or $\mu^+\mu^-$).The experimental signature is a distinctive topology consisting of a pair of charged leptons originating from a displaced secondary vertex. Events were collected by the CMS detector at the LHC during pp collisions at $\sqrt{s} = 8$~TeV, and selected from data samples corresponding to 19.6 (20.5)~fb$^{-1}$ of integrated luminosity in the electron (muon) channel. No significant excess is observed above standard model expectations. Upper limits are set on such a signal, as a function of the long-lived particle lifetime, in the context of two specific models. In the first, Higgs bosons decay to a pair of long-lived neutral particles that each subsequently decay to dileptons. In the second, events contain a pair of squarks that each decay to a long-lived neutralinos, which then each decay to dileptons and a neutrino. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
Public twiki page ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PRD 91 (2015) 052012. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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