Measurement of J/ψ production in pp collisions at √s=2.76TeV

The production of J/ψ mesons is studied with the LHCb detector using data from pp collisions at √s = 2.76 TeV corresponding to an integrated luminosity of 71 nb−1 . The differential cross-section for inclusive J/ψ production is measured as a function of its transverse momentum pT. The cross-section...

ver descrição completa

Detalhes bibliográficos
Autores: Abellan Beteta, Carlos, Calvo Gómez, Míriam, Camboni, Alessandro, Comerma Montells, Albert, Domingo Bonal, Francesc, Garrido Beltrán, Lluís, Graciani Díaz, Ricardo, Graugés Pous, Eugeni, López Asamar, Elias, Pérez-Calero Yzquierdo, Antonio, Picatoste Olloqui, Eduardo, Potterat, Cédric, Rives Molina, Vicente José, Ruiz, Hugo (Ruiz Pérez), Vázquez Gómez, Ricard, Vilasis-Cardona, Xavier, LHCb Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/99300
Acesso em linha:https://hdl.handle.net/2445/99300
Access Level:acceso abierto
Palavra-chave:Hadrons
Teoria quàntica de camps
Gravitació
Teoria quàntica
Relativitat (Física)
Quantum field theory
Gravitation
Quantum theory
Relativity (Physics)
Descrição
Resumo:The production of J/ψ mesons is studied with the LHCb detector using data from pp collisions at √s = 2.76 TeV corresponding to an integrated luminosity of 71 nb−1 . The differential cross-section for inclusive J/ψ production is measured as a function of its transverse momentum pT. The cross-section in the fiducial region 0 < pT < 12 GeV/c and rapidity 2.0 < y < 4.5 is measured to be 5.6±0.1 (stat)±0.4 (syst) µb, with the assumption of unpolarised J/ψ production. The fraction of J/ψ production from b-hadron decays is measured to be (7.1 ± 0.6 (stat) ± 0.7 (syst))%.

Registos relacionados