Dijet Production at Large Rapidity Intervals

TL;DR

The paper investigates dijet production at large rapidity intervals in Tevatron kinematics using the BFKL framework to resum leading rapidity logarithms. It derives the semi-inclusive cross section with minijet corrections, analyzes the Mueller-Navelet K-factor, and examines how jet correlations in transverse momentum and azimuthal angle degrade as the rapidity interval grows. Numerical results show only a modest enhancement from minijets at Tevatron energies due to PDF phase-space constraints, but reveal significant decorrelation effects and a flatter high-pT jet spectrum at large y. The study highlights the LL-BFKL limitations while outlining observable signatures that could validate or refine the approach against data and higher-order calculations.

Abstract

We examine dijet production at large rapidity intervals at Tevatron energies, by using the theory of Lipatov and collaborators which resums the leading powers of the rapidity interval. We analyze the growth of the Mueller-Navelet $K$-factor in this context and find it to be negligible. However, we do find a considerable enhancement of jet production at large transverse momenta. In addition, we show that the correlation in transverse momentum and azimuthal angle of the tagging jets fades away as the rapidity interval is increased.