Dijet Production at Large Rapidity Separation in N=4 SYM

TL;DR

This paper investigates azimuthal angle correlations between widely separated jets in N=4 super Yang-Mills theory, demonstrating their strong perturbative convergence and comparing them to QCD results to identify optimal renormalization schemes.

Contribution

It provides the first detailed analysis of azimuthal correlations in N=4 SYM and compares these to QCD, highlighting the effectiveness of the MOM scheme with BLM scale fixing.

Findings

Correlations exhibit excellent perturbative convergence.

MOM scheme with BLM captures most MSYM results.

Ratios directly demonstrate SL(2,C) symmetry in gauge theories.

Abstract

Ratios of azimuthal angle correlations between two jets produced at large rapidity separation are studied in the N=4 super Yang-Mills theory (MSYM). It is shown that these observables, which directly prove the SL(2,C) symmetry present in gauge theories in the Regge limit, exhibit an excellent perturbative convergence. They are compared to those calculated in QCD for different renormalization schemes concluding that the momentum-substraction (MOM) scheme with the Brodsky-Lepage-Mackenzie (BLM) scale-fixing procedure captures the bulk of the MSYM results.