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

Abstract

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.

arXiv commentLaTeX2e, 18 pages, 4 figures

References in corpus (21)

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Cited by in corpus (9)

• Quarkonium Production at High-Energy Colliders
• New Observables in Inclusive Production of Quarkonia
• Theory of hard photoproduction
• Associated Production of Heavy Quarkonia and Electroweak Bosons at Present and Future Colliders
• J/psi plus prompt-photon associated production in two-photon collisions at next-to-leading order
• Prompt J/psi plus photon associated electroproduction at DESY HERA
• Azimuthal asymmetries in $J/\psi$-photon production at the EIC
• Heavy-Flavour Production at HERA
• Next-to-leading order analysis of $J/\psi +\gamma$ production in photon-photon collisions at CEPC