Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-HIG-24-014 | ||
| Search for a narrow resonance with mass between 10 and 70 GeV decaying to a pair of photons in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 20 March 2025 | ||
| Abstract: The existence of a new spin-zero particle with a mass lower than the electroweak scale is predicted by several theoretical models, and searches for resonant production of photon pairs at the LHC are able to probe these models. We present a search for a narrow resonance produced through gluon-fusion that decays into a pair of photons in the invariant mass range between 10 and 70 GeV, using a proton-proton collision data set from the CMS experiment. This data set was recorded in 2018 at a center-of-mass energy of $ \sqrt{s}= $ 13 TeV and corresponds to an integrated luminosity of 54.4 fb$ ^{-1} $. No significant excess above the expected background is observed. Upper limits are set on the cross section times branching fraction for diphoton resonance production via gluon-fusion. An interpretation of these limits in the context of an axion-like-particle effective field theory model is also provided. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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