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 framing dependence 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.
@article{arxiv.1402.4128,
title = {BPS Wilson loops and Bremsstrahlung function in ABJ(M): a two loop analysis},
author = {Marco S. Bianchi and Luca Griguolo and Matias Leoni and Silvia Penati and Domenico Seminara},
journal= {arXiv preprint arXiv:1402.4128},
year = {2015}
}