QED contribution to the production of J/ψ+c\bar{c}+X at the Tevatron and LHC

Abstract

We calculate α^{2}α_{s}^{2} order QED contribution to J/ψproduction in pp(\bar{p})\to J/ψ+c\bar{c} color-singlet process at the Tevatron and LHC in the framework of non-relativistic QCD. The contribution of the interference between the α^{2}α_{s}^{2} QED and α_{s}^{4} QCD is also taken into account. The J/ψproduction associated with a charm quark pair could be a measurable signal at hadron collider experiment. Our calculations show that by including the QED contribution, the p_{t} distribution is enhanced by a factor of 1.5 (1.9) at the Tevatron (LHC) at p_{t}=50 (100) GeV. In addition, the polarization of J/ψturns from unpolarized in all region to increasingly transverse when p_{t} becomes larger.

14 pages, 6 figures, version accepted for publication in Phys Rev D

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Cited by in corpus (7)

• Heavy quarkonium: progress, puzzles, and opportunities
• J/psi (psi') production at the Tevatron and LHC at O(α_s^4v^4) in nonrelativistic QCD
• QCD corrections to Upsilon production via color-octet states at the Tevatron and LHC
• Relativistic Correction to Color Octet J/psi Production at Hadron Colliders
• ${\chi }_{cJ}$ production associated with a $c\bar{c}$ pair at hadron colliders
• Prompt heavy quarkonium production in association with a massive (anti)bottom quark at the LHC
• Color-singlet J/psi production at alpha_s^6 in Upsilon decay