production via fragmentation at HERA

1995/11/28 by R. M. Godbole, D.P. Roy, D. P. Roy +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0370-2693(96)00144-x

published as Phys.Lett. B373 (1996) 328-333 · 9 pages (Latex) plus 2 figures enclosed as a uuencoded file

arxiv created 1995/11/28 · openalex publication_date 1996/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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.

Citations

• Charmonium production at the Tevatron

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