Measurements are presented of associated production of a W boson and a charm quark (W + c) in proton–proton collisions at a center-of-mass energy of 13Te. The data correspond to an integrated luminosity of 35.7fb-1 collected by the CMS experiment at the CERN LHC. The W bosons are identified by their decay into a muon and a neutrino. The charm quarks are tagged via the full reconstruction of D ∗ (2010) ± mesons that decay via D ∗ (2010) ± → D + π ± → K ∓ + π ± + π ± . A cross section is measured in the fiducial region defined by the muon transverse momentum pTμ>26Ge, muon pseudorapidity | η μ | < 2.4 , and charm quark transverse momentum pTc>5Ge. The inclusive cross section for this kinematic range is σ(W+c)=1026±31(stat)+76-72(syst) pb. The cross section is also measured differentially as a function of the pseudorapidity of the muon from the W boson decay. These measurements are compared with theoretical predictions and are used to probe the strange quark content of the proton

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2019). Measurement of associated production of a W boson and a charm quark in proton–proton collisions at sqrt(s) = 13 Tev. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(3) [10.1140/epjc/s10052-019-6752-1].

Measurement of associated production of a W boson and a charm quark in proton–proton collisions at sqrt(s) = 13 Tev

Benaglia, A.;Beschi, A.;Brianza, L.;Brivio, F.;Ciriolo, V.;Dinardo, M. E.;Fiorendi, S.;Ghezzi, A.;Govoni, P.;Malberti, M.;Massironi, A.;Moroni, L.;Paganoni, M.;Ragazzi, S.;Tabarelli de Fatis, T.;Zuolo, D.;Pigazzini, S.;Gerosa, R.;Lucchini, M. T.;De Guio, F.;
2019

Abstract

Measurements are presented of associated production of a W boson and a charm quark (W + c) in proton–proton collisions at a center-of-mass energy of 13Te. The data correspond to an integrated luminosity of 35.7fb-1 collected by the CMS experiment at the CERN LHC. The W bosons are identified by their decay into a muon and a neutrino. The charm quarks are tagged via the full reconstruction of D ∗ (2010) ± mesons that decay via D ∗ (2010) ± → D + π ± → K ∓ + π ± + π ± . A cross section is measured in the fiducial region defined by the muon transverse momentum pTμ>26Ge, muon pseudorapidity | η μ | < 2.4 , and charm quark transverse momentum pTc>5Ge. The inclusive cross section for this kinematic range is σ(W+c)=1026±31(stat)+76-72(syst) pb. The cross section is also measured differentially as a function of the pseudorapidity of the muon from the W boson decay. These measurements are compared with theoretical predictions and are used to probe the strange quark content of the proton
Articolo in rivista - Articolo scientifico
Physics, LHC, CMS
English
2019
79
3
269
open
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2019). Measurement of associated production of a W boson and a charm quark in proton–proton collisions at sqrt(s) = 13 Tev. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(3) [10.1140/epjc/s10052-019-6752-1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/223590
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