Modeling Double Parton Scattering at LHC

TL;DR

This paper analyzes double parton scattering at the LHC, examining energy dependence and comparing models, including a soft gluon resummation approach, to explain experimental data across various final states.

Contribution

It introduces a comparison of different models for the effective cross-section, including a new soft gluon resummation inspired model, to interpret LHC data on double parton scattering.

Findings

Effective cross-section increases with energy in certain processes.

Models including soft gluon resummation fit the data well.

Data from pp -> 4 jets and quarkonium pairs support the energy dependence trend.

Abstract

We examine present data for double parton scattering at LHC and discuss their energy dependence from its earliest measurements at the ISR. Different models for the effective cross-section are considered and their behavior studied for a variety of selected final states. We point out that data for pp ->4 jets or pp -> quarkonium pair indicate the effective cross-section to increase with energy. We compare this set of data with different models, including one inspired by our soft gluon resummation model for the impact parameter distribution of partons.