Compact Muon Solenoid
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| CMS-PAS-EXO-22-020 | ||
| Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 23 August 2023 | ||
| Abstract: A search for long-lived particles produced in proton-proton collisions at a center-of-mass energy of 13 TeV at the CERN LHC is presented. The search is based on data collected by the CMS experiment in 2016--2018 and corresponding to a total integrated luminosity of 137 fb$ ^{-1} $. This search is designed to be sensitive to long-lived particles with mean proper decay lengths between 0.1 and 1000 mm whose decay products produce a final state with at least one displaced vertex and missing transverse momentum. The observation is consistent with the standard model background prediction, and the results are used to constrain split supersymmetry models with different mean proper decay lengths and gluino masses. Gluinos with mean proper decay lengths between 1 and 100 mm are excluded at 95% confidence level in models for which the gluino mass is below 1800 and 2000 GeV when the difference in the gluino and neutrino masses is, respectively, 100 and 200 GeV. These limits are the most stringent to date for signal models with proper decay lengths up to 100 mm. | ||
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Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to PRD. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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