Prompt J/psi plus photon associated electroproduction at DESY HERA

Abstract

We study the production of a prompt J/psi meson in association with a prompt photon in ep deep-inelastic scattering within the factorisation formalism of non-relativistic quantum chromodynamics (NRQCD) and demonstrate that this process provides a clean probe of the colour-octet mechanism at DESY HERA. Our analysis is based on an updated set of non-perturbative NRQCD matrix elements obtained through a joint fit to data on charmonium inclusive hadroproduction from runs I and II at the Fermilab Tevatron.

11 pages, 1 figure, to appear in Eur. Phys. J. C

Cited by in corpus (12)

• Reconciling J/psi production at HERA, RHIC, Tevatron, and LHC with NRQCD factorization at next-to-leading order
• New Observables in Inclusive Production of Quarkonia
• Complete next-to-leading-order corrections to J/psi photoproduction in nonrelativistic quantum chromodynamics
• Pair Production of Heavy Quarkonium and $B_c{(}^{\ast })$ Mesons at Hadron Colliders
• QCD corrections to $J/\psi$ production in association with a $W$-boson at the LHC
• eta_c production at the Large Hadron Collider
• Azimuthal asymmetries in $J/\psi$-photon production at the EIC
• Photoproduction of the double $J/\psi$ (${\rm Y}$) at the LHC with forward proton tagging
• Photoproduction of $J/\psi$ with forward hadron tagging in hadronic collisions
• Prompt $J/\psi$ production in associated with top quark pair at the LHC
• Revisit prompt $J/\psi$ production in associated with Higgs Boson via gluon fusion at the LHC
• Next-to-leading order analysis of $J/\psi +\gamma$ production in photon-photon collisions at CEPC