Simulation of multiple partonic interactions in Herwig++

TL;DR

This paper introduces a new multiple partonic interactions model in Herwig++, tuned to CDF data, with extrapolations to LHC energies, enhancing the simulation accuracy of underlying events in high-energy collisions.

Contribution

The paper presents a novel multiple partonic interactions model implemented in Herwig++, with parameters tuned to experimental data and predictions for LHC energies.

Findings

Good description of CDF underlying event data

Model extrapolates well to LHC energies

Provides improved simulation of multiple partonic interactions

Abstract

In this paper we describe a new model of multiple partonic interactions that has been implemented in Herwig++. Tuning its two free parameters we find a good description of CDF underlying event data. We show extrapolations to the LHC.