A new approach to gluon-quark multiplicity ratio

TL;DR

This paper introduces a novel method combining perturbative and nonperturbative effects to analyze the gluon-quark jet multiplicity ratio, supported by a global data fit, based on recent small-x resummation advances.

Contribution

It presents a new approach that incorporates both perturbative and nonperturbative contributions to the gluon-quark multiplicity ratio, leveraging recent small-x resummation techniques.

Findings

Effective fit to available data

Improved understanding of jet multiplicity ratio

Integration of perturbative and nonperturbative effects

Abstract

We present a new approach in considering and including both the perturbative and the nonperturbative contributions to the multiplicity ratio $r$ of gluon and quark jets. The new method is motivated by recent developments in timelike small-x resummation obtained in the $\bar{\rm MS}$ factorization scheme. A global analysis to fit the available data is also presented.