High-energy resummation effects in the production of Mueller-Navelet dijet at the LHC

TL;DR

This paper investigates high-energy effects in Mueller-Navelet dijet production at the LHC using a complete next-to-leading logarithm framework, demonstrating good agreement with CMS data and analyzing various correction effects.

Contribution

It provides a comprehensive NLL analysis of Mueller-Navelet jets, showing improved theoretical descriptions and addressing energy-momentum conservation and double parton scattering effects.

Findings

NLL framework describes CMS azimuthal correlations well

NLO jet vertex corrections reduce energy-momentum non-conservation issues

Double parton scattering is negligible in CMS kinematics

Abstract

We study the production of two forward jets with a large interval of rapidity at hadron colliders, which was proposed by Mueller and Navelet as a possible test of the high energy dynamics of QCD, within a complete next-to-leading logarithm framework. We show that using the Brodsky-Lepage-Mackenzie procedure to fix the renormalization scale leads to a very good description of the recent CMS data at the LHC for the azimuthal correlations of the jets. We show that the inclusion of next-to-leading order corrections to the jet vertex significantly reduces the importance of energy-momentum non-conservation which is inherent to the BFKL approach, for an asymmetric jet configuration. Finally, we argue that the double parton scattering contribution is negligible in the kinematics of actual CMS measurements.