Four-jet production in kt-factorization: single and double parton scattering

TL;DR

This paper investigates single and double parton scattering effects on 4-jet production within the kt-factorization framework at 7 TeV, comparing results with collinear approaches and experimental data, highlighting the significance of DPS under certain conditions.

Contribution

It provides a preliminary analysis of DPS contributions to 4-jet production in kt-factorization at LO, contrasting with collinear results and experimental data, emphasizing the impact of jet cut choices.

Findings

Double parton scattering is significant for soft jet cuts.

Symmetric cuts suppress double parton scattering in kt-factorization.

Results differ from collinear predictions and align variably with ATLAS and CMS data.

Abstract

We present a preliminary study of both Single and Double Parton Scattering contributions to the inclusive 4-jet production in the kt-factorization framework at Leading Order and $E_{CM} = 7$ TeV. We compare our results to collinear results in the literature and to the ATLAS and CMS data at 8 and 7 TeV respectively. We also discuss the importance of double parton scattering for relatively soft cuts on the jet transverse momenta and find out that symmetric cuts do not quite suit well to kt-factorization predictions, because of a kinematic effect suppressing the double parton scattering contribution.