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

TL;DR

This paper analyzes the structure of box coefficients in N=1 supersymmetric one-loop amplitudes, revealing their coplanar support in twistor space for certain amplitude classes.

Contribution

It provides explicit box coefficients for six-point and all-$n$ N=1 amplitudes, highlighting their geometric properties in twistor space.

Findings

Box coefficients for six-point N=1 amplitudes are computed.

Next-to MHV amplitudes have coplanar support in twistor space.

All-$n$ amplitude coefficients are characterized for specific cases.

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.