J/psi Production at the LHC

Details J/psi Production at the LHC J/psi Production at the LHC

1997-01-03

arxiv.org/abs/hep-ph/9701210v1

Phys.Lett. B406 (1997) 232-236

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTex, 4 Figures included in the text

Scientific paper

10.1016/S0370-2693(97)00668-0

We firstly re-examine hadroproduction of prompt J/psi's at the Fermilab Tevatron finding that those colour-octet matrix elements presented in literature are systematically overestimated due to the overlooking of the effective primordial transverse momentum of partons (i.e. dynamically generated via initial-state radiation). We estimate the size of these effects using different parton distribution functions in a Monte Carlo framework. Finally, we extrapolate up to LHC energies making a prediction on the expected pt differential cross-section for charmonium.

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