Compact Muon Solenoid
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| CMS-PAS-EXO-19-005 | ||
| Search for long-lived particles using delayed photons with proton-proton collisions at $\sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| July 2019 | ||
| Abstract: A search for new physics with long-lived particles decaying to photons is presented using proton-proton collisions data at $\sqrt{s}= $ 13 TeV collected by the CMS experiment in 2016 and 2017 corresponding to 35.9 fb$^{-1}$ and 41.5 fb$^{-1}$ of integrated luminosity, respectively. Results are interpreted in the context of supersymmetry with gauge-mediated supersymmetry breaking, where long-lived neutralinos are produced as secondaries and decay to a photon and a gravitino. Limits are presented as a function of the neutralino proper decay length and mass. For neutralino proper decay lengths of 10$^{1}$, 10$^{2}$, 10$^{3}$, and 10$^{4} $ cm, masses up to 320, 525, 360, and 215 GeV are excluded at 95% CL, respectively. We extend the previous best limits in the neutralino proper decay length by up to about one order of magnitude, and in neutralino mass by up to about 100 GeV. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PRD 100 (2019) 112003. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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