Instability in scalar channel of fermion-antifermion scattering amplitude in massless QED_3 and anomalous dimensions of composite operators

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dc.creatorMitra, Indrajit
dc.creatorRatabole, Raghunath
dc.creatorSharatchandra, H. S.
dc.date2006-01-10
dc.date2007-01-12
dc.date.accessioned2026-07-07T10:45:39Z
dc.date.available2026-07-07T10:45:39Z
dc.descriptionInstability in the scalar channel of the fermion-antifermion scattering amplitude in massless QED_3 for number of flavours less than the critical value 128/3π^2 is demonstrated. The anomalous dimensions of gauge-invariant composite operators are determined to O(1/N). Exponentiation of the O(1/N) infrared logarithm is explicitly demonstrated by evaluating the contribution of the ladder diagrams.
dc.description10 pages, uses axodraw.sty; minor additions, version to appear in Mod. Phys. Lett. A
dc.identifierhttps://arxiv.org/abs/hep-th/0601058
dc.identifierhttp://arxiv.org/abs/hep-th/0601058
dc.identifierMod.Phys.Lett.A22:297-306,2007
dc.identifierdoi:10.1142/S0217732307020981
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182980
dc.subjectHigh Energy Physics - Theory
dc.subjectSuperconductivity
dc.subjectHigh Energy Physics - Phenomenology
dc.titleInstability in scalar channel of fermion-antifermion scattering amplitude in massless QED_3 and anomalous dimensions of composite operators
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