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Production of J/$\psi+\eta_{c}$ vs. J/$\psi+J/\psi$ at the LHC: Importance of the Real $\alpha_s^5$ corrections

We proceed for the first time to the evaluation of the Born cross section for J/psi+eta(c) production, namely via g+g -> J/psi+eta(c)+g, and show that it has a harder P_T spectrum than the J/psi-pair yield at Born level. If one stuck to a comparison at Born level, one would conclude that J/psi+et...

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Detalles Bibliográficos
Autores principales: Lansberg, Jean-Philippe, Shao, Hua-Sheng
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.111.122001
http://cds.cern.ch/record/1566534