Associated J/psi + gamma Photoproduction as a Probe of the Colour-Octet Mechanism

Details Associated J/psi + gamma Photoproduction as a Probe of the Colour-Octet Mechanism Associated J/psi + gamma Photoproduction as a Probe of the Colour-Octet Mechanism

1996-11-14

arxiv.org/abs/hep-ph/9611324v1

Phys.Rev.D55:7126-7133,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX2e, 18 pages, 4 figures

Scientific paper

10.1103/PhysRevD.55.7126

The associated production of a J/psi and a photon in photon-hadron collisions is considered, and shown to be a good probe of the presence of colour-octet mediated channels in quarkonia production, as predicted by the factorization approach within NRQCD. Total and differential cross sections for photoproduction at fixed target experiments and at HERA are presented. Associated J/psi + gamma production at hadron colliders is briefly discussed.

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