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ZEUS Measurement of Inelastic J/{psi} {yields} {mu}+{mu}- Production in DIS

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.2122164· OSTI ID:20726570
 [1]
  1. Moscow State Engineering Physics Institute. Kashirskoe shosse 31 115409 Moscow (Russian Federation)
The inelastic production of J/{psi} in ep collisions has been studied with the ZEUS detector at HERA using an integrated luminosity of 109 pb-1. The J/{psi} mesons were identified using the decay channel J/{psi} {yields} {mu}+{mu}-. The measured cross sections are compared to theoretical predictions within the non-relativistic QCD framework including colour-singlet and colour-octet contributions and the kT-factorisation approach. Calculations of the colour-singlet process only generally agree with the data whereas inclusion of colour-octet terms spoils this agreement.
OSTI ID:
20726570
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 792; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English

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