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

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 Author Paranavitane, C. B. ♦ McKellar, B. H. J. ♦ Ma, J. P. Source arXiv.org Content type Text File Format PDF Date of Submission 1999-01-13 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics Subject Keyword High Energy Physics - Phenomenology ♦ physics:hep-ph 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. Educational Use Research Learning Resource Type Article Page Count 12