Measurements of the associated production of a W boson and a charm (c) quark in proton–proton collisions at a centre-of-mass energy of 8TeV are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7fb-1 collected by the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm quark jets are selected using distinctive signatures of charm hadron decays. The product of the cross section and branching fraction σ(pp → W + c + X) B(W → ℓν) , where ℓ= e or μ , and the cross section ratio σ(pp → W ++ c ¯ + X) / σ(pp → W -+ c + X) are measured in a fiducial volume and differentially as functions of the pseudorapidity and of the transverse momentum of the lepton from the W boson decay. The results are compared with theoretical predictions. The impact of these measurements on the determination of the strange quark distribution is assessed.

Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Ero, J., Valle, A., et al. (2022). Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at √s=8TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 82(12) [10.1140/epjc/s10052-022-10897-7].

Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at √s=8TeV

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

Abstract

Measurements of the associated production of a W boson and a charm (c) quark in proton–proton collisions at a centre-of-mass energy of 8TeV are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7fb-1 collected by the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm quark jets are selected using distinctive signatures of charm hadron decays. The product of the cross section and branching fraction σ(pp → W + c + X) B(W → ℓν) , where ℓ= e or μ , and the cross section ratio σ(pp → W ++ c ¯ + X) / σ(pp → W -+ c + X) are measured in a fiducial volume and differentially as functions of the pseudorapidity and of the transverse momentum of the lepton from the W boson decay. The results are compared with theoretical predictions. The impact of these measurements on the determination of the strange quark distribution is assessed.
Articolo in rivista - Articolo scientifico
Boson; Partons; Higgs Bosons
English
5-dic-2022
2022
82
12
1094
none
Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Ero, J., Valle, A., et al. (2022). Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at √s=8TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 82(12) [10.1140/epjc/s10052-022-10897-7].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/476396
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