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 137fb-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.

Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Ero, J., Valle, A., et al. (2022). Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton–proton collisions at √s=13TeV. EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 82(4) [10.1140/epjc/s10052-022-10127-0].

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

Xiao J.;Benaglia A.;Beschi A.;Brivio F.;Cetorelli F.;Ciriolo V.;De Guio F.;Dinardo M. E.;Ghezzi A.;Govoni P.;Guzzi L.;Malberti M.;Massironi A.;Monti F.;Moroni L.;Paganoni M.;Ragazzi S.;T. Tabarelli de Fatis;Valsecchi D.;Zuolo D.;Ortona G.;Gerosa R.;Lucchini M. T.;
2022

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 137fb-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.
Articolo in rivista - Articolo scientifico
hadron collider; Higgs boson
English
4-apr-2022
2022
82
4
290
open
Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Ero, J., Valle, A., et al. (2022). Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton–proton collisions at √s=13TeV. EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 82(4) [10.1140/epjc/s10052-022-10127-0].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/429902
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