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J/psi production via fragmentation at HERA

Godbole, RM and Roy, DP and Sridhar, K (1995) J/psi production via fragmentation at HERA. [Preprint]


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We compute the contributions to large-$p_T$ $J/\psi$ 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 $J/\psi$ 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 $J/\psi$ at HERA will provide a direct probe of the charm quark fragmentation functions.

Item Type: Preprint
Additional Information: Phys.Lett. B373 (1996) 328-333
Department/Centre: Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:13
URI: http://eprints.iisc.ac.in/id/eprint/902

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