Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/185726
Title: | Study of W boson production in association with beauty and charm |
Author: | Badalov, Alexey Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Molina, V. Rives Ruiz, Hugo LHCb collaboration |
Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
Issue Date: | 8-Sep-2015 |
Publisher: | American Physical Society |
Abstract: | 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 → µν decay and muons with a transverse momentum, pT, larger than 20 GeV in the pseudorapidity range 2.0 < η < 4.5. The partons are reconstructed as jets with pT > 20 GeV and 2.2 < η < 4.2. The sum of the muon and jet momenta must satisfy pT > 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 → µµ decay. All results are in agreement with Standard Model predictions. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.92.052001 |
It is part of: | Physical Review D, 2015, vol. 92, num. 052001, p. 1-26 |
URI: | http://hdl.handle.net/2445/185726 |
Related resource: | https://doi.org/10.1103/PhysRevD.92.052001 |
ISSN: | 2470-0010 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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