Rescattering effects in jet-gap-jet processes

TL;DR

This paper investigates jet-gap-jet events in hadron collisions, analyzing how rescattering effects influence rapidity gap distributions using LL BFKL calculations and Pythia simulations, highlighting the impact on gap survival probabilities.

Contribution

It combines LL BFKL calculations with Pythia simulations to study rescattering effects on rapidity gaps in jet events, providing new insights into gap survival probabilities.

Findings

Rescattering effects significantly alter gap size distributions.

Kinematic dependence of gap survival probability is characterized.

Pythia simulations effectively model multiple parton interactions.

Abstract

We discuss the process of colour-singlet parton-parton scattering, which in hadron-hadron collision can lead to production of jet events, where a rapidity gap between the jets is present. The dynamics of the process is calculated within LL BFKL approximation. Using Pythia MC generator, hadronic shapes of jet-gap-jet events are studied, in particular the distributions of the rapidity gap size resulting from the jet formation processes. Using Pythia's modelling of multiple parton interactions, the rescattering effects are simulated. It is shown how these effects influence the gap size distributions. The kinematic dependence of the gap survival probability is discussed.