Mueller Navelet jets at LHC: a clean test of QCD resummation effects at high energy?

TL;DR

This paper provides a comprehensive next-to-leading BFKL analysis of Mueller Navelet jets at the LHC, comparing theoretical predictions with experimental data to test QCD resummation effects at high energies.

Contribution

It offers the first complete NLL BFKL calculation including both Green's function and jet vertex corrections for Mueller Navelet jets.

Findings

NLL BFKL results align well with LHC data

Fixed order NLO calculations show different azimuthal decorrelation patterns

The study confirms the importance of resummation effects in high-energy jet processes

Abstract

Mueller Navelet jets were proposed more than 25 years ago as a decisive test of BFKL dynamics at hadron colliders. We here present a complete next-to-leading BFKL study of the azimuthal decorrelation of these jets. This includes both next-to-leading corrections to the Green's function and next-to-leading corrections to the jet vertices. We compare our results with recent data taken at the LHC and results obtained in a fixed order next-to-leading-order (NLO) calculation.