Production of \gamma\gamma + 2jets from double parton scattering in proton-proton collisions at the LHC

TL;DR

This paper calculates the cross sections and expected event rates for producing two photons and two jets from double parton scattering in proton-proton collisions at the LHC, using advanced QCD predictions.

Contribution

It provides the first theoretical estimates of b3b3 + 2 jets production from double parton scattering at the LHC, incorporating next-to-next-to-leading-order and next-to-leading-order QCD calculations.

Findings

Cross sections calculated for 13 TeV and 14 TeV energies.

Event rate estimates for planned LHC luminosities.

First theoretical predictions for this specific process.

Abstract

Cross sections for the production of pairs of photons plus two additional jets produced from double parton scattering in high-energy proton-proton collisions at the LHC are calculated for the first time. The estimates are based on the theoretical perturbative QCD predictions for the productions of \gamma\gamma at next-to-next-to-leading-order, jet + jet and \gamma + jet at next-to-leading-order, for their corresponding single-scattering cross sections. The cross sections and expected event rates for \gamma\gamma + 2 jets from double parton scattering, after typical acceptance and selections, are given for proton-proton collisions with the center-of-mass energies of 13 TeV and an integrated luminosity of 100 fb-1 planned for the following two years, and also center-of-mass energies of 14 TeV with 3000 fb-1 of integrated luminosity as LHC designed.