TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2015
DA  - 2015//
TI  - Study of W boson production in association with beauty and charm
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 052001
EP  - 16pp
VL  - 92
IS  - 5
PB  - Amer Physical Soc
AB  - 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.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1505.04051
UR  - https://doi.org/10.1103/PhysRevD.92.052001
DO  - 10.1103/PhysRevD.92.052001
LA  - English
N1  - WOS:000360885800001
ID  - LHCbCollaborationAaij_etal2015
ER  -