Jet separated by a large rapidity gap at the Tevatron and the LHC

TL;DR

This paper compares jet gap measurements at the Tevatron and LHC with BFKL predictions, finding good agreement with Tevatron data but discrepancies at the LHC due to initial state radiation effects.

Contribution

It provides a comparative analysis of jet gap data with BFKL framework and identifies the role of initial state radiation in observed discrepancies.

Findings

Good agreement with Tevatron data

Discrepancies at LHC explained by initial state radiation

Highlights limitations of current simulation models

Abstract

We compare the recent measurements of gap between jets at the Tevatron and the LHC with the Balitski Fadin Kuraev Lipatov framework. While a good agreement is obtained with Tevatron data, some discrepancies especially for the rapidity separation between jets are found that can be explained by an excess of initial state radiation in PYTHIA.