Gaps between jets at hadron colliders in the next-to-leading BFKL framework

TL;DR

This paper studies diffractive jet events with large rapidity gaps at hadron colliders, using next-to-leading order BFKL theory, and finds good agreement with Tevatron data while providing testable predictions for the LHC.

Contribution

It applies a renormalisation-group improved NLL BFKL framework to diffractive jet production, advancing the phenomenological understanding of rapidity gap events in QCD.

Findings

BFKL predictions agree with Tevatron data

Provides testable predictions for LHC

Highlights importance of NLL corrections in BFKL

Abstract

We investigate diffractive events in hadron-hadron collisions, in which two jets are produced and separated by a large rapidity gap. In perturbative QCD, the hard color-singlet object exchanged in the t-channel, and responsible for the rapidity gap, is the Balitsky-Fadin-Kuraev-Lipatov (BFKL) Pomeron. We perform a phenomenological study including the corrections due to next-to-leading logarithms (NLL). Using a renormalisation-group improved NLL kernel, we show that the BFKL predictions are in good agreement with the Tevatron data, and present predictions which could be tested at the LHC.