# Extraction of partonic transverse momentum distributions from semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production

## TL;DR

This paper performs a global fit to extract unpolarized partonic transverse momentum distributions (TMDs) from diverse experimental data, utilizing TMD evolution at next-to-leading logarithmic accuracy, focusing on low transverse momentum regions.

## Contribution

It introduces a novel simultaneous fitting method of TMDs across different processes using TMD evolution, marking a first attempt at a comprehensive global analysis.

## Key findings

- Successful extraction of TMDs from multiple data sets
- Implementation of TMD evolution at low scales (~1 GeV^2)
- Focus on low transverse momentum without high-momentum matching

## Abstract

We present an extraction of unpolarized partonic transverse momentum distributions (TMDs) from a simultaneous fit of available data measured in semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production. To connect data at different scales, we use TMD evolution at next-to-leading logarithmic accuracy. The analysis is restricted to the low-transverse-momentum region, with no matching to fixed-order calculations at high transverse momentum. We introduce specific choices to deal with TMD evolution at low scales, of the order of 1 GeV$^2$. This could be considered as a first attempt at a global fit of TMDs.