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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...
Autores principales: | , |
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Lenguaje: | eng |
Publicado: |
2013
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.111.122001 http://cds.cern.ch/record/1566534 |