Forward-Central Jet Correlations at the Large Hadron Collider

TL;DR

This paper investigates the effects of QCD logarithmic corrections on forward-central jet correlations at the LHC, employing high-energy factorization to improve theoretical predictions for these high-energy processes.

Contribution

It introduces a Monte Carlo implementation of high-energy factorization to accurately resum logarithmic corrections in forward-central jet production at the LHC.

Findings

QCD corrections significantly affect jet correlation predictions.

Large-angle gluon radiation impacts parton-showering models.

Resummation improves agreement with observed jet distributions.

Abstract

For high-pT forward processes at the Large Hadron Collider (LHC), QCD logarithmic corrections in the hard transverse momentum and in the large rapidity interval may both be quantitatively significant. The theoretical framework to resum consistently both kinds of logarithmic corrections to higher orders in perturbation theory is based on QCD high-energy factorization. We present numerical Monte Carlo applications of this method to final-state observables associated with production of one forward and one central jet. By computing jet correlations in rapidity and azimuth, we analyze the role of corrections to the parton-showering chain from large-angle gluon radiation, and discuss this in relationship with Monte Carlo results modeling interactions due to multiple parton chains.