%0 Journal Article
%T Study of W boson production in association with beauty and charm
%A LHCb Collaboration (Aaij, R. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Ruiz Valls, P.
%A Sanchez Mayordomo, C.
%J Physical Review D
%D 2015
%V 92
%N 5
%I Amer Physical Soc
%@ 1550-7998
%G English
%F LHCbCollaborationAaij_etal2015
%O WOS:000360885800001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2385), last updated on Thu, 01 Oct 2015 17:34:59 +0000
%X The associated production of a W boson with a jet originating from either a light parton or heavy-flavor quark is studied in the forward region using proton-proton collisions. The analysis uses data corresponding to integrated luminosities of 1.0 and 2.0 fb(-1) collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, respectively. The W bosons are reconstructed using the W -> μnu decay and muons with a transverse momentum, p(T), larger than 20 GeV in the pseudorapidity range 2.0 < eta < 4.5. The partons are reconstructed as jets with p(T) > 20 GeV and 2.2 < eta < 4.2. The sum of the muon and jet momenta must satisfy p(T) > 20 GeV. The fraction of W + jet events that originate from beauty and charm quarks is measured, along with the charge asymmetries of the W+b and W+c production cross sections. The ratio of the W + jet to Z + jet production cross sections is also measured using the Z -> μμdecay. All results are in agreement with Standard Model predictions.
%R 10.1103/PhysRevD.92.052001
%U http://arxiv.org/abs/1505.04051
%U https://doi.org/10.1103/PhysRevD.92.052001
%P 052001-16pp