Proof of the Dual Conformal Anomaly of One-Loop Amplitudes in N=4 SYM

TL;DR

This paper presents two straightforward derivations of the one-loop dual conformal anomaly in N=4 SYM superamplitudes, enhancing understanding of symmetry properties in this theory.

Contribution

It introduces two novel, simple proofs of the dual conformal anomaly at one loop using unitarity and amplitude analytic properties.

Findings

Confirmed the dual conformal anomaly in one-loop superamplitudes

Provided new derivations that simplify previous proofs

Enhanced understanding of symmetry structures in N=4 SYM

Abstract

We provide two derivations of the one-loop dual conformal anomaly of generic n-point superamplitudes in maximally supersymmetric Yang-Mills theory. Our proofs are based on simple applications of unitarity, and the known analytic properties of the amplitudes.