On the Amplitude/Wilson Loop duality in $\mathcal{N}=2$ SCQCD
High Energy Physics - Theory
2015-06-15 v4
Abstract
We compute the four-point amplitude with external adjoint particles in SCQCD at two loops using superspace Feynman diagrams, extending the results of arXiv:1406.7283. We consider the diagrammatic difference with the corresponding process of SYM finding a non vanishing result, which is a non trivial function of the kinematic variables. This demonstrates that in SCQCD, even in the sector with external particles in the vector multiplet, the amplitude/Wilson loop duality is inevitably broken at two loops.
Cite
@article{arxiv.1502.07614,
title = {On the Amplitude/Wilson Loop duality in $\mathcal{N}=2$ SCQCD},
author = {Marta Leoni and Andrea Mauri and Alberto Santambrogio},
journal= {arXiv preprint arXiv:1502.07614},
year = {2015}
}
Comments
17 pages; v2: a comment on the Regge limit of the final result and references added; v3: minor corrections; v4: published shorter version matching Phys.Lett. B standards