A Note on Loop Amplitudes in QED
High Energy Physics - Theory
2009-08-11 v1
Abstract
We consider the two-loop four-point amplitude in N=2 super QED, and show that there exists an approximate recursive structure similar to that captured by the ABDK/BDS ansatz for MHV amplitudes in N=4 super Yang-Mills. Furthermore, we present a simple relation between the box coefficients of one-loop photon MHV amplitudes in (super) QED, and sums of box coefficients of one-loop MHV amplitudes in (super) Yang-Mills.
Cite
@article{arxiv.0908.1306,
title = {A Note on Loop Amplitudes in QED},
author = {Andreas Brandhuber and Gabriele Travaglini and Massimiliano Vincon},
journal= {arXiv preprint arXiv:0908.1306},
year = {2009}
}
Comments
15 pages, 3 figures, uses axodraw