Color Transfer in Associated Heavy-Quarkonium Production

Abstract

We study the production of heavy quarkonium in association with an additional heavy pair. We argue that important contributions may come from phase space regions where three heavy fermions are separated by relative velocities much lower than the speed of light, and to which standard effective field theories do not apply. In this region, infrared sensitive color exchange is specific to the presence of the unpaired (anti)quark. This effect vanishes as the motion of the additional particle becomes relativistic with respect to the pair, and is completely absent for massless quarks and gluons in the final state.

4 pages, 2 figures, a few changes in wording and a typo correction. Version accepted for publication in Phys. Rev. Lett

References in corpus (2)

• Hadroproduction of J/psi and Upsilon in association with a heavy-quark pair
• Double charm production e^+ e^- \to J/ψ+ c \bar{c} at B factories with next-to-leading order QCD corrections

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• Factorization and NLO QCD correction in e^+ e^- \to J/ψ(ψ(2S))+ χ_{c0} at B Factories}
• Possible solution of the J/psi production puzzle
• Real next-to-next-to-leading-order QCD corrections to J/psi and Upsilon hadroproduction in association with a photon
• Factorization theorems for exclusive heavy-quarkonium production
• Transverse momentum broadening of vector boson production in high energy nuclear collisions
• Color Transfer Enhancement for Heavy Quarkonium Production
• QED contribution to the production of J/ψ+c\bar{c}+X at the Tevatron and LHC
• Heavy Quarkonium Physics-Theoretical Status