NRQCD Factorization and Velocity-dependence of NNLO Poles in Heavy Quarkonium Production

Abstract

We study the transition of a heavy quark pair from octet to singlet color configurations at next-to-next-to-leading order (NNLO) in heavy quarkonium production. We show that the infrared singularities in this process are consistent with NRQCD factorization to all orders in the heavy quark relative velocity v. This factorization requires the gauge-completed matrix elements that we introduced previously to prove NNLO factorization to order v ^2.

23pages latex, 2 figures

References in corpus (2)

• J/psi, psi' and Upsilon Production at Hadron Colliders: a review
• Hard probes in heavy ion collisions at the LHC: heavy flavour physics

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• Color Transfer Enhancement for Heavy Quarkonium Production
• Overview of Non-Relativistic QCD
• Perspectives for inclusive quarkonium production in photon-photon collisions at the LHC
• Heavy Quarkonium Physics from Effective Field Theories