dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T15:23:11Z | |
dc.date.available | 2014-05-20T15:23:11Z | |
dc.date.created | 2014-05-20T15:23:11Z | |
dc.date.issued | 2006-09-01 | |
dc.identifier | Journal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 39, n. 35, p. 11091-11099, 2006. | |
dc.identifier | 0305-4470 | |
dc.identifier | http://hdl.handle.net/11449/34024 | |
dc.identifier | 10.1088/0305-4470/39/35/010 | |
dc.identifier | WOS:000239933300011 | |
dc.description.abstract | Here 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. | |
dc.language | eng | |
dc.publisher | Iop Publishing Ltd | |
dc.relation | Journal of Physics A: Mathematical and General | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.title | Static potential in scalar QED(3) with non-minimal coupling | |
dc.type | Artículos de revistas | |