Precise evaluation of the Cut Constructible part of one loop amplitudes within D-dimensional unitarity

TL;DR

This paper introduces a method to accurately separate pentagon contributions in the calculation of one-loop amplitudes using D-dimensional unitarity, improving the precision of the cut constructible part.

Contribution

A novel approach to isolate pentagon contributions enhances the accuracy of one-loop amplitude evaluations in D-dimensional unitarity.

Findings

Significantly higher accuracy in reconstructing the cut constructible part.

Numerical analysis confirms the effectiveness of the method.

Abstract

A method to separate pentagon contributions from the evaluation of the cut constructible part of primitive amplitudes within the framework of D-dimensional unitarity is proposed. The cut constructible part is thus reconstructed with significantly higher accuracy as demonstrated by the numerical analysis presented here.