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arXiv · hep-ph/9511433

J/psi production via fragmentation at HERA

R. M. Godbole·D. P. Roy·K. Sridhar
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Abstract

We compute the contributions to large-$p_T$ $J/ψ$ production at HERA coming from fragmentation of gluons and charm quarks. We find that the charm quark fragmentation contribution dominates over the direct production of $J/ψ$ via photon-gluon fusion at large-$p_T$, while the gluon fragmentation is negligibly small over the whole range of $p_T$. An experimental study of $p_T$ distributions of $J/ψ$ at HERA will provide a direct probe of the charm quark fragmentation functions.

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R. M. Godbole, D. P. Roy, K. Sridhar. 1995-11-28. J/psi production via fragmentation at HERA. https://doi.org/10.1016/0370-2693(96)00144-x

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