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dc.contributor.authorDalmazi, D.
dc.contributor.authorMendonca, Elias L.
dc.identifier.citationJournal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 39, n. 35, p. 11091-11099, 2006.
dc.description.abstractHere we compute the static potential in scalar QED(3) at leading order in 1/Nf. We show that the addition of a non-minimal coupling of Pauli-type (is an element of(mu nu alpha)j(mu)partial derivative(nu)A(alpha)), although it breaks parity, it does not change the analytic structure of the photon propagator and consequently the static potential remains logarithmic ( confining) at large distances. The non-minimal coupling modifies the potential, however, at small charge separations giving rise to a repulsive force of short range between opposite sign charges, which is relevant for the existence of bound states. This effect is in agreement with a previous calculation based on Moller scattering, but differently from such calculation we show here that the repulsion appears independently of the presence of a tree level Chern-Simons term which rather affects the large distance behaviour of the potential turning it into a constant.en
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Physics A: Mathematical and General
dc.sourceWeb of Science
dc.titleStatic potential in scalar QED(3) with non-minimal couplingen
dcterms.rightsHolderIop Publishing Ltd
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUNESP, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUNESP, BR-12516410 Guaratingueta, SP, Brazil
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