Resummation of threshold double logarithms in hadroproduction of heavy quarkonium

Abstract

We resum threshold double logarithms that appear in inclusive production of heavy quarkonium. This resolves the catastrophic failure of fixed-order perturbation theory where quarkonium cross sections at large transverse momentum can turn negative due to large radiative corrections. We find that resummation is imperative for describing measured prompt production rates of $J/\psi$ at large transverse momentum.

7 pages, 3 figures, minor revisions, version published in Physical Review Letters

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Cited by in corpus (2)

• How well does nonrelativistic QCD factorization work at next-to-leading order?
• Resummation of threshold double logarithms in quarkonium fragmentation functions