Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-EXO-24-006 | ||
| Search for heavy resonances decaying into four leptons with high Lorentz boosts in proton-proton collisions at $ \sqrt{s} = $ 13 TeV | ||
| CMS Collaboration | ||
| 29 March 2025 | ||
| Abstract: A search for a high-mass resonance decaying into four-lepton final states via two intermediate bosons is presented. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV collected by the CMS detector at LHC, corresponding to an integrated luminosity of 138 fb$ ^{-1} $. Signal hypotheses with a light intermediate boson may result in highly collimated decay products. Boosted electron pairs reconstructed into a single merged object are distinguished using a novel electron identification technique. A collimated muon pair may fail to reconstruct one of the tracks. In this case, the missing muon momentum is obtained from the missing transverse energy. No significant excess is observed. Model-independent upper limits on the product of cross section and branching ratio to four-leptons are set with $ \mathrm{X}\rightarrow\mathrm{YY}\rightarrow\!4\ell $ and $ \mathrm{X}\rightarrow\mathrm{Z}\mathrm{Y}\rightarrow\!4\ell $ channels for $ M_{\mathrm{X}} $ from 250 GeV to 2 TeV and $ M_{\mathrm{Y}} $ greater than 0.4 GeV at 95% confidence level. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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