# Transversity 2022

May 23 – 27, 2022
Almo Collegio Borromeo, Pavia, Italy
Europe/Rome timezone

## Transverse-momentum distributions of hadrons produced in DIS at COMPASS

May 24, 2022, 10:00 AM
20m
Almo Collegio Borromeo, Pavia, Italy

#### Almo Collegio Borromeo, Pavia, Italy

P.zza Borromeo 9 27100 Pavia Italy
Longer talk

### Speaker

Jan Matousek (Charles University, Prague)

### Description

In semi-inclusive deep inelastic scattering (SIDIS) the non-zero transverse momentum of partons is reflected in the transverse momentum $P_T$ of the produced hadrons. Assuming Gaussian dependence of transverse momentum dependent (TMD) PDFs and fragmentation functions (FFs) upon quark transverse momentum, exponential distribution of $P_T^2$ is expected. In 2016 and 2017, COMPASS experiment at CERN collected a large sample of SIDIS events using a longitudinally polarised 160~GeV/$c$ muon beam scattering on a liquid hydrogen target. The $P_T^2$ distributions of charged hadrons have been extracted from part of the data. They can be described by two exponentials and they qualitatively agree with earlier COMPASS measurements with an isoscalar target.

### Primary author

Jan Matousek (Charles University, Prague)