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

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dc.creatorNayak, Gouranga C.
dc.creatorQiu, Jian-Wei
dc.creatorSterman, George
dc.date2006-08-05
dc.date.accessioned2026-07-07T10:25:15Z
dc.date.available2026-07-07T10:25:15Z
dc.descriptionWe 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.
dc.description23pages latex, 2 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0608066
dc.identifierhttp://arxiv.org/abs/hep-ph/0608066
dc.identifierPhys.Rev.D74:074007,2006
dc.identifierdoi:10.1103/PhysRevD.74.074007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176478
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleNRQCD Factorization and Velocity-dependence of NNLO Poles in Heavy Quarkonium Production
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