Hadron transverse momentum distributions and TMD studies

TL;DR

This paper presents measurements of charged hadron transverse momentum distributions in muon-induced deep inelastic scattering on a lithium target, extracting TMDs and providing benchmarks for theoretical models.

Contribution

It introduces a method to extract intrinsic parton transverse momentum using Gaussian fits to $p_T^2$ distributions in DIS data.

Findings

Gaussian fits describe $p_T^2$ distributions well across kinematic ranges

Intrinsic transverse momentum of partons is quantitatively extracted

Results serve as benchmarks for TMD theoretical models

Abstract

Charged hadron differential distributions from muon-induced deep inelastic scattering, DIS, on a $^6$LiD target are presented as function of the DIS variables $x_{Bj}$, $Q^2$, $W^2$ and the hadron variables $p_T$ and $z$. They can be used as benchmark to verify the reliability of theoretical model. The $p_T^2$ distributions are fitted with a Gaussian function at different kinematic intervals. With a Gaussian ansatz for the transverse momentum dependent parton distributions, TMDs, the intrinsic transverse momentum of the partons is extracted.