On the Standard Approach to Renormalization Group Improvement

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dc.creatorChishtie, F. A.
dc.creatorElias, V.
dc.creatorMann, R. B.
dc.creatorMcKeon, D. G. C.
dc.creatorSteele, T. G.
dc.date2006-09-27
dc.date.accessioned2026-07-07T11:07:17Z
dc.date.available2026-07-07T11:07:17Z
dc.descriptionTwo approaches to renormalization-group improvement are examined: the substitution of the solutions of running couplings, masses and fields into perturbatively computed quantities is compared with the systematic sum of all the leading log (LL), next-to-leading log (NLL) etc. contributions to radiatively corrected processes, with n-loop expressions for the running quantities being responsible for summing N^{n}LL contributions. A detailed comparison of these procedures is made in the context of the effective potential V in the 4-dimensional O(4) massless $λϕ^{4}$ model, showing the distinction between these procedures at two-loop order when considering the NLL contributions to the effective potential V.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/hep-th/0609199
dc.identifierhttp://arxiv.org/abs/hep-th/0609199
dc.identifierInt.J.Mod.Phys.E16:1681-1685,2007
dc.identifierdoi:10.1142/S0218301307006095
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189791
dc.subjectHigh Energy Physics - Theory
dc.titleOn the Standard Approach to Renormalization Group Improvement
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