A new method for the numerical evaluation of one-loop amplitudes

TL;DR

This paper introduces a novel integrand-level reduction method for efficiently evaluating one-loop scattering amplitudes, demonstrating promising initial results in complex process calculations.

Contribution

The paper presents a new integrand-level reduction technique for one-loop amplitudes, enabling more efficient and general calculations compared to previous methods.

Findings

Successful initial calculations demonstrate the method's effectiveness.

The approach simplifies the reduction to scalar integrals at the integrand level.

Potential for application to complex scattering processes.

Abstract

We recently presented a new method for the evaluation of one-loop amplitude of arbitrary scattering processes, in which the reduction to scalar integrals is performed at the integrand level. In this talk, we review the main features of the method and briefly summarize the results of the first calculations performed using it.