# Extraction of unpolarized quark transverse momentum dependent parton   distributions from Drell-Yan/Z-boson production

**Authors:** Valerio Bertone, Ignazio Scimemi, and Alexey Vladimirov

arXiv: 1902.08474 · 2019-06-26

## TL;DR

This paper extracts unpolarized quark TMDPDFs and the non-perturbative evolution kernel from Drell-Yan and Z-boson data using NNLO QCD, highlighting the impact of precise LHC measurements.

## Contribution

It provides a novel global analysis of TMDPDFs at NNLO with the $$-prescription, incorporating LHC data to improve non-perturbative function determination.

## Key findings

- Successful extraction of TMDPDFs and evolution kernel.
- Quantified the impact of LHC data on non-perturbative functions.
- Used replica method for error estimation.

## Abstract

We present the extraction of unpolarized quark transverse momentum dependent parton distribution functions (TMDPDFs) and the non-perturbative part of TMD evolution kernel from the global analysis of Drell-Yan and $Z$-boson production data. The analysis is performed at the next-to-next-to-leading order (NNLO) in perturbative QCD, using the $\zeta$-prescription. The estimation of the error-propagation from the experimental uncertainties to non-perturbative function is made by the replica method. The importance of the inclusion of the precise LHC data and its influence on the determination of non-perturbative functions is discussed.

## Full text

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## Figures

22 figures with captions in the complete paper: https://tomesphere.com/paper/1902.08474/full.md

## References

69 references — full list in the complete paper: https://tomesphere.com/paper/1902.08474/full.md

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Source: https://tomesphere.com/paper/1902.08474