Exclusive Upsilon-photoproduction: from HERA to Tevatron
Anna Rybarska, Wolfgang Sch\"afer, Antoni Szczurek
TL;DR
This paper calculates the photoproduction amplitude for Upsilon mesons using pQCD, compares it with HERA data, and predicts cross sections for exclusive production in proton-antiproton collisions at Tevatron energies, including absorption effects.
Contribution
It introduces a pQCD k_perp-factorization approach to calculate and predict exclusive Upsilon production across different experimental settings.
Findings
Calculated cross sections agree with HERA data
Predicted cross sections for Tevatron energies
Included absorption effects in predictions
Abstract
The amplitude for photoproduction gamma p -> \Upsilon p is calculated in a pQCD k_\perp-factorization approach. The total cross section for diffractive \Upsilon's is compared to recent HERA data. The amplitude is used to predict the cross section for exclusive ppbar \to ppbar \Upsilon(1S,2S) process in hadronic reactions at Tevatron energies. We also included absorption effects.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Medical Imaging Techniques and Applications · Quantum Chromodynamics and Particle Interactions