Infrared Renormalization Group Flow for Heavy Quark Masses

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dc.creatorHoang, Andre H.
dc.creatorJain, Ambar
dc.creatorScimemi, Ignazio
dc.creatorStewart, Iain W.
dc.date2008-03-31
dc.date2008-06-17
dc.date.accessioned2026-07-07T11:49:26Z
dc.date.available2026-07-07T11:49:26Z
dc.descriptionA short-distance heavy quark mass depends on two parameters, the renormalization scale mu controlling the absorption of ultraviolet fluctuations into the mass, and a scale R controlling the absorption of infrared fluctuations. 1/R can be thought of as the radius for perturbative corrections that build up the mass beyond its point-like definition in the pole scheme. Treating R as a variable gives a renormalization group equation. We argue that the sign of this anomalous dimension is universal: increasing R to add IR modes decreases m(R). The flow improves the stability of conversions between mass schemes, allowing us to avoid large logs and the renormalon. The flow in R can be used to study IR renormalons without using bubble chains, and we use it to determine the coefficient of the LambdaQCD renormalon ambiguity of the pole mass with a convergent sum-rule.
dc.description4 pages, 2 figures, Added explicit result for the top MSbar mass with uncertainties
dc.identifierhttps://arxiv.org/abs/0803.4214
dc.identifierhttp://arxiv.org/abs/0803.4214
dc.identifierPhys.Rev.Lett.101:151602,2008
dc.identifierdoi:10.1103/PhysRevLett.101.151602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203231
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleInfrared Renormalization Group Flow for Heavy Quark Masses
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