Charmonium Production at the LHC

Details Charmonium Production at the LHC Charmonium Production at the LHC

1996-02-16

arxiv.org/abs/hep-ph/9602329v1

Mod.Phys.Lett. A11 (1996) 1555-1562

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages including 2 postscript figures

Scientific paper

The analyses of large transverse momentum charmonium production at the Tevatron have shown that fragmentation of gluons is an important production mechanism. We study large-$p_T$ charmonium production in $pp$ collisions at the LHC, and find that due to the copious gluon production at this energy, the gluon fragmentation contribution completely overwhelms the fusion contribution and the charm quark fragmentation contribution. Our analysis shows that for $J/\psi$ production at the LHC, there is a significant event rate even for $p_T \sim$~100~GeV. The measurement of the cross-section at such large values of $p_T$ will provide a very important test of the fragmentation mechanism.

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