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Title

Measurement of associated production of a W boson and a charm quark in proton–proton collisions at √s = 13 TeV

AuthorsSirunyan, A. M.; Cabrillo, I. J. ; Calderon, Alicia ; Chazin Quero, B.; Duarte Campderros, J. ; Fernández, M. ; Fernández-Manteca, Pedro; García Alonso, A.; García-Ferrero, J. ; Gómez, G. ; López Virto, A. ; Marco, Jesús ; Martínez-Rivero, Celso ; Martínez Ruiz del Arbol, P. ; Matorras, Francisco ; Piedra, Jonatan ; Prieels, C.; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vilar, Rocío
Issue Date2019
PublisherSpringer Nature
CitationEuropean Physical Journal C 79: 269 (2019)
AbstractMeasurements 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 13TeV. 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)±→D0+π±→K∓+π±+π±. A cross section is measured in the fiducial region defined by the muon transverse momentum pμT>26GeV, muon pseudorapidity |ημ|<2.4, and charm quark transverse momentum pcT>5GeV. 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.
DescriptionCMS Collaboration: et al.
Publisher version (URL)https://doi.org/10.1140/epjc/s10052-019-6752-1
URIhttp://hdl.handle.net/10261/213305
DOIhttp://dx.doi.org/10.1140/epjc/s10052-019-6752-1
Identifiersdoi: 10.1140/epjc/s10052-019-6752-1
e-issn: 1434-6052
issn: 1434-6044
Appears in Collections:(IFCA) Artículos
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