Renormalization Ambiguities and Conformal Anomaly in Metric-Scalar Backgrounds

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dc.creatorAsorey, M.
dc.creatorde Berredo-Peixoto, G.
dc.creatorShapiro, I. L.
dc.date2006-09-20
dc.date2006-11-16
dc.date.accessioned2026-07-07T11:43:55Z
dc.date.available2026-07-07T11:43:55Z
dc.descriptionWe analyze the problem of the existing ambiguities in the conformal anomaly in theories with external scalar field in curved backgrounds. In particular, we consider the anomaly of self-interacting massive scalar field theory and of Yukawa model in the massless conformal limit. In all cases the ambiguities are related to finite renormalizations of a local non-minimal terms in the effective action. We point out the generic nature of this phenomenon and provide a general method to identify the theories where such an ambiguity can arise.
dc.descriptionRevTeX, 10 pages, no figures. Small comment and two references added. Accepted for publication in Physical Review D
dc.identifierhttps://arxiv.org/abs/hep-th/0609138
dc.identifierhttp://arxiv.org/abs/hep-th/0609138
dc.identifierPhys.Rev.D74:124011,2006
dc.identifierdoi:10.1103/PhysRevD.74.124011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201419
dc.subjectHigh Energy Physics - Theory
dc.titleRenormalization Ambiguities and Conformal Anomaly in Metric-Scalar Backgrounds
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