HAL : in2p3-00683553, version 1

arXiv : 1103.2394

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Phenomenological interpolation of the inclusive J/psi cross section to proton-proton collisions at 2.76 TeV and 5.5 TeV

F. Bossu, Z. Conesa Del Valle1, A. De Falco, M. Gagliardi, S. Grigoryan, G. Martínez García2

(2012)

We present a study of the inclusive J/psi cross section at 2.76 TeV and 5.5 TeV. The energy dependence of the cross section, rapidity and transverse momentum distributions are evaluated phenomenologically. Their knowledge is crucial as a reference for the interpretation of A-A and p-A J/psi results at the LHC. Our approach is the following: first, we estimate the energy evolution of the pt-integrated J/psi cross section at mid-rapidity; then, we evaluate the rapidity dependence; finally, we study the transverse momentum distribution trend. Whenever possible, both theory driven (based on pQCD predictions) and functional form (data driven fits) calculations are discussed. Our predictions are compared with the recently obtained results by the ALICE collaboration in pp collisions at 2.76 TeV.

1 :	DRS-IPHC - Département Recherches Subatomiques
2 :	SUBATECH - Laboratoire SUBATECH Nantes

Thème(s)

:

Physique/Physique des Hautes Energies - Expérience Physique/Physique des Hautes Energies - Phénoménologie Physique/Physique Nucléaire Expérimentale

in2p3-00683553, version 1

http://hal.in2p3.fr/in2p3-00683553

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Contributeur : Dominique Girod <>

Soumis le : Jeudi 29 Mars 2012, 10:40:05

Dernière modification le : Jeudi 29 Mars 2012, 14:27:11