Measurement of associated production of a W boson and a charm quark in proton-proton collisions at 13 TeV Experiment: CMS (LHC) Inspire ID:1705068 Status: VALIDATED Authors:
Beams: p+ p+ Beam energies: (6500.0, 6500.0) GeV Run details:
13 TeV pp→W+c.
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 TeV. 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+πpm→K∓+πpm+πpm. A parton-level cross section is measured in the fiducial region defined by the muon transverse momentum \pμT>26GeV, muon pseudorapidity \absημ<2.4, and charm quark transverse momentum pcT>5GeV. The cross section is also measured differentially as a function of the pseudorapidity of the muon from the W boson decay. A particle-level cross section is measured in the fiducial region defined by the muon transverse momentum \pμT>26GeV, muon pseudorapidity \absημ<2.4, D*(2010)^{\pm} transverse momentum pD∗T>5GeV and D*(2010)^{\pm} pseudorapidity \absηD∗<2.4. The particle-level cross section has been implemented in the Rivet plugin.