The Fermi motion contribution to J/ψproduction at the hadron colliders

Details The Fermi motion contribution to J/ψproduction at the hadron colliders The Fermi motion contribution to J/ψproduction at the hadron colliders

2005-08-13

arxiv.org/abs/hep-ph/0508158v5

Phys.Lett.B639:488-493,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 4 figures, to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.06.047

We investigate the relativistic Fermi motion effect in the case of $J/\psi$ production in various hadron colliders. A light-cone wave function is adopted to represent the $J/\psi$ final state. The change in the confinement parameter which sets a scale for the size of the final state, allows one to see the effect in an explicit manner. While the effect has considerable influence on the fragmentation probabilities and the differential cross sections, the total cross sections are essentially left unchanged. such a feature is in agreement with the momentum sum rule which the fragmentation functions should satisfy.

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