# Measurement of associated production of a W boson and a charm quark in proton-proton collisions at root s=13 Tev

Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Eroe, J, Escalante Del Valle, A
et al (show 2289 more authors) (2019) Measurement of associated production of a W boson and a charm quark in proton-proton collisions at root s=13 Tev. EUROPEAN PHYSICAL JOURNAL C, 79 (3). 269-.

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## 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 13 Te . The data correspond to an integrated luminosity of 35.7 fb-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 pTμ>26Ge , muon pseudorapidity |ημ|<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.

Item Type: Article CMS Collaboration Symplectic Admin 07 May 2019 10:21 19 Jan 2023 00:50 10.1140/epjc/s10052-019-6752-1 https://doi.org/10.1140/epjc/s10052-019-6752-1 https://livrepository.liverpool.ac.uk/id/eprint/3040059