Inelastic $J/\psi$ production in polarized photon-hadron collisions

Abstract

Presented here is a calculation of inelastic $J/\psi$ production in polarized photon-hadron collisions under the framework of NRQCD factorization formalism. We consider the photoproduction of $\jpsi$ in the energy range relevant to HERA. The Weizsäcker-Williams approximation is adopted in the evaluation of the cross sections for $ep$ collisions. We found that this process can give another independent test for the color-octet mechanism, and the different features for the two color-octet processes may provide further informations on the mechanism for inelastic $\jpsi$ photoproduction. And the discrepancy on the production asymmetry $A$ between various sets of polarized gluon distribution functions is also found to be distinctive.

14pages, 6 PS figures

References in corpus (6)

• Inelastic photoproduction of polarised $J/\psi$
• Kinematic Enhancement of Non-Perturbative Corrections to Quarkonium Production
• Charmonia production in hadron colliders and the extraction of colour-octet matrix elements
• Next-to-Leading Order Analysis of Inclusive and Semi-inclusive Polarized Data
• J/psi production at the Tevatron and HERA: the effect of k_T smearing
• Jet cross sections in polarized photon-hadron collisions

Cited by in corpus (8)

• Theory of hard photoproduction
• Charmonium production in polarized high-energy collisions
• Helicity Amplitudes for Charmonium Production in Hadron-Hadron and Photon-Hadron Collisions
• Ghost contributions to charmonium production in polarized high-energy collisions
• Photoproduction of $J/\psi$ with forward hadron tagging in hadronic collisions
• Color Octet Contribution to J/psi Photoproduction Asymmetries
• Elastic and inelastic $J/\psi$ photoproduction in $p$-$p$ collisions at LHC energies: the feature of Weizsäcker-Williams approximation
• Electroproduction of psi' and polarized gluon distribution in a proton