Speaker
Description
The azimuthal angle ($\phi_\text{h}$) and transverse momentum squared ($P_\text{T}^{2}$) distributions of charged hadrons produced in semi-inclusive deep inelastic scattering (SIDIS) provide valuable access to the transverse momentum structure of the nucleon. These observables are sensitive to transverse momentum-dependent parton distribution functions (TMD-PDFs) and fragmentation functions (FFs), offering insight into the dynamics of partons inside the nucleon.
The COMPASS Collaboration at CERN collected a high-statistics SIDIS data set in 2016 and 2017 using a longitudinally polarized 160 GeV/$c$ muon beam scattering off a liquid hydrogen target. Measurements of azimuthal asymmetries and $P_\text{T}^{2}$-distributions have been performed using a subset of this data. QED radiative corrections have been applied using the DJANGOH Monte Carlo generator. The impact of these corrections on the unpolarized SIDIS results will be discussed.
