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arXiv · hep-ph/9611264

J/psi Production at the LHC

Miguel A. Sanchis-Lozano·Beatriz Cano-Coloma
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Abstract

We firstly examine hadroproduction of prompt J/psi's at the Fermilab Tevatron in a Monte Carlo Framework by means of the event generator PYTHIA 5.7 in which those colour-octet matrix elements processes relevant for charmonium production have been implemented accordingly. We find that colour-octet matrix elements presented in literature from p-pbar collider data are systematically overestimated due to overlooking of the effective primordial transverse momentum of partons (i.e. including higher-order QCD effects). We estimate the size of these effects using different parton distribution functions. Finally, after normalization to Tevatron data, we extrapolate up to LHC energies making a prediction on the expected pt differential cross-section for charmonium.

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Miguel A. Sanchis-Lozano, Beatriz Cano-Coloma. 1996-11-07. J/psi Production at the LHC. https://doi.org/10.1016/s0920-5632(97)00187-4

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