Twistor Space Structure of the Box Coefficients of N=1 One-loop Amplitudes

Steven J. Bidder; N. E. J. Bjerrum-Bohr; David C. Dunbar; Warren B. Perkins

doi:10.1016/j.physletb.2004.12.030

paper

Twistor Space Structure of the Box Coefficients of N=1 One-loop Amplitudes

arXiv:hep-th/0412023 · doi:10.1016/j.physletb.2004.12.030

Abstract

We examine the coefficients of the box functions in N=1 supersymmetric one-loop amplitudes. We present the box coefficients for all six point N=1 amplitudes and certain all $n$ example coefficients. We find for ``next-to MHV'' amplitudes that these box coefficients have coplanar support in twistor space.

14 pages, minor typos corrected