BPS Wilson loops and Bremsstrahlung function in ABJ(M): a two loop analysis

Leoni, Matias

Abstract

We study a family of circular BPS Wilson loops in N = 6 super Chern-Simons-matter theories, generalizing the usual 1/2-BPS circle. The scalar and fermionic couplings depend on two deformation parameters and these operators can be considered as the ABJ(M) counterpart of the DGRT latitudes defined in N = 4 SYM. We perform a complete two-loop analysis of their vacuum expectation value, discuss the appearance of framing-like phases and propose a general relation with cohomologically equivalent bosonic operators. We make an all-loop proposal for computing the Bremsstrahlung function associated to the 1/2-BPS cusp in terms of these generalized Wilson loops. When applied to our two-loop result it reproduces the known expression. Finally, we comment on the generalization of this proposal to the bosonic 1/6-BPS case.

Más información

Título según WOS: ID WOS:000338298000001 Not found in local WOS DB
Título de la Revista: JOURNAL OF HIGH ENERGY PHYSICS
Número: 6
Editorial: Springer Nature
Fecha de publicación: 2014
DOI:

10.1007/JHEP06(2014)123

Notas: ISI