Measurement of associated production of a W boson and a charm quark in proton–proton collisions at √s=13Te
Journal
European Physical Journal C
Journal Volume
79
Journal Issue
3
Date Issued
2019
Author(s)
Sirunyan A.M.
Favart, L.
Dobur, D.
Tytgat, M.
Schieck, J.
Verbeke, W.
Moreels, L.
Madlener, T.
Khvastunov, I.
Asilar, E.
Wulz, C. E.
Marchesini, I.
Dragicevic, M.
Krätschmer, I.
Vit, M.
Clerbaux, B.
Delannoy, H.
Kalsi, A. K.
Schöfbeck, R.
Janssen, X.
De Bruyn, I.
Thomas, L.
Liko, D.
Vanlaer, P.
David, P.
Tavernier, S.
Goldouzian, R.
Lowette, S.
Spanring, M.
Van Doninck, W.
Frühwirth, R.
Pieters, M.
Bakhshiansohi, H.
Ambrogi, F.
Van Mechelen, P.
Flechl, M.
Bergauer, T.
Jeitler, M.
Vermassen, B.
Chekhovsky, V.
Vander Velde, C.
Zaganidis, N.
De Wolf, E. A.
Lauwers, J.
Brandstetter, J.
Wittmann, J.
Lenzi, T.
Fasanella, G.
Suarez Gonzalez, J.
Erö, J.
Escalante Del Valle, A.
Caputo, C.
Waltenberger, W.
De Clercq, J.
Postiau, N.
De Lentdecker, G.
Blekman, F.
Beghin, D.
Starling, E.
Van Parijs, I.
Bilin, B.
Brun, H.
Wang, Q.
Deroover, K.
Lontkovskyi, D.
Flouris, G.
Hrubec, J.
Di Croce, D.
Mossolov, V.
Vannerom, D.
Brochet, S.
Adam, W.
Skovpen, K.
Taurok, A.
Tumasyan, A.
Van Haevermaet, H.
Mikulec, I.
Luetic, J.
Sirunyan, A. M.
Abu Zeid, S.
Dorney, B.
Gul, M.
Ghete, V. M.
Roskas, C.
Cornelis, T.
Trocino, D.
Krammer, N.
D’Hondt, J.
Moortgat, S.
Van Mulders, P.
Zarucki, M.
Grebenyuk, A.
Rohringer, H.
Fagot, A.
Python, Q.
Bondu, O.
Spitzbart, D.
Poyraz, D.
Bruno, G.
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. ? 2019, CERN for the benefit of the CMS collaboration.
Type
journal article