Searching for optimal conditions for exploration of double-parton scattering in four-jet production at the LHC

TL;DR

This paper investigates how to optimize conditions for detecting double-parton scattering in four-jet events at the LHC, using advanced calculations to identify regions with enhanced DPS signals.

Contribution

It introduces optimized kinematic conditions and employs the $k_T$-factorization approach with the AVHLIB Monte Carlo for better DPS detection in four-jet production.

Findings

Identified regions with increased DPS contribution based on rapidity and azimuthal correlations.

Provided differential distributions for DPS and single-parton scattering at 7 and 13 TeV.

Enhanced understanding of kinematic variables influencing DPS visibility.

Abstract

We discuss the double-parton scattering (DPS) effects in four-jet production at the LHC. A special attention is given to the optimization of kinematical conditions in order to enhance the relative contribution of DPS in four-jet sample. The calculations of single-parton and double-parton scattering components are done in the high-energy (or $k_{T}$)-factorization approach. Here we follow our recent developments of relevant methods and tools that are implemented in the AVHLIB Monte Carlo library. Several differential distributions are calculated and carefully discussed in the context of recent and future searches for DPS effects at the LHC, for both $\sqrt{s} = 7$ and $13$ TeV energies. The dependences of the relative DPS amount is studied as a function of rapidity of jets, rapidity distance, and various azimuthal correlations between jets. The regions with an enhanced DPS contribution are identified.