Studies of multi-jet merging with Parton Branching TMD evolution

TL;DR

This paper explores a novel multi-jet merging method incorporating TMD evolution and parton showers, applied to high-mass Drell-Yan jets, aiming to improve QCD predictions for complex final states.

Contribution

It introduces a new multi-jet merging approach that accounts for TMD evolution effects, enhancing the accuracy of jet predictions in high-mass Drell-Yan processes.

Findings

Demonstrates improved agreement with experimental data for high-mass Drell-Yan jets.

Shows the importance of TMD effects in multi-jet merging.

Provides a framework for more precise QCD modeling of jet production.

Abstract

QCD predictions for final states with multiple jets in hadron collisions make use of multi-jet merging methods, which allow one to combine consistently the contributions from hard scattering matrix elements with different parton multiplicities and parton showers. In this article I consider a multi-jet merging method that has recently been proposed to take into account the effects of transverse momentum dependent (TMD) evolution and parton shower, and present studies focusing on the application of this method to jets associated with Drell-Yan (DY) production in the region of high masses.