The Color Singlet Relativistic Correction in $J/\psi$ Photoproduction

Abstract

The $O(v^2)$ relativistic correction for inelastic $J/\psi$ photoproduction, in which heavy quark pairs are in the dominant Fock state of the quarkonium, is studied in the framework of NRQCD factorization. An assessment of its significance, particularly in comparison to the color octet contributions, is made. It is found that the impact on the energy distribution is negative in certain regions of phase space. The predictions are compared with photoproduction data from DESY-HERA.

12 pages, 5 figures, LaTex, new figures

References in corpus (2)

• Kinematic Enhancement of Non-Perturbative Corrections to Quarkonium Production
• Measurement of Inelastic J/Psi Photoproduction at HERA

Cited by in corpus (8)

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• Quarkonium Production at High-Energy Colliders
• Theory of hard photoproduction
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• Color-singlet relativistic correction to inclusive $J/\psi$ production associated with light hadrons at $B$ factories
• Relativistic Correction to Color Octet J/psi Production at Hadron Colliders
• Relativistic Correction to J/ψProduction at Hadron Colliders
• Spin-Flip Interactions and the Puzzle of psi's Polarization at Tevatron