: A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton-proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137 fb-1 , at a center-of-mass energy s=13TeV . No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.

Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton-proton collisions at s=13TeV

Aimè, C;Calzaferri, S;Fiorina, D;Montagna, P;Ratti, S P;Ressegotti, M;Riccardi, C;Salvini, P;Vai, I;Vitulo, P;
2022-01-01

Abstract

: A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton-proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137 fb-1 , at a center-of-mass energy s=13TeV . No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/1477129
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