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LHCb first J/psi cross-section measurement

The first LHCb measurement of the J/@j production cross-section is presented. The differential production cross-section is measured as a function of the J/@j transverse momentum p_T in the range p_T@?[0,10]GeV/c and rapidity y in the range y@?[2.5 ,4]. The analysis is based on a sample of 14.2 nb^-^...

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Detalles Bibliográficos
Autor principal: Robbe, P
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysbps.2011.03.057
http://cds.cern.ch/record/2002960
Descripción
Sumario:The first LHCb measurement of the J/@j production cross-section is presented. The differential production cross-section is measured as a function of the J/@j transverse momentum p_T in the range p_T@?[0,10]GeV/c and rapidity y in the range y@?[2.5 ,4]. The analysis is based on a sample of 14.2 nb^-^1 collected between April and June 2010 at the pp Large Hadron Collider at CERN, at a center-of-mass energy s=7TeV. The fraction of J/@j coming from b-hadron decays is estimated using the J/@j pseudo-pro pertime.