Semiinclusive DIS cross sections and spin asymmetries in the quantum statistical parton distributions approach

TL;DR

This paper extends quantum statistical parton distributions to include transverse momentum dependence, compares two methods, and analyzes their implications for semiinclusive DIS data and future experiments.

Contribution

It introduces a novel extension of statistical parton distributions incorporating transverse momentum, using two different theoretical approaches.

Findings

Results align with recent JLab semiinclusive DIS data

Predictions made for future electron-neutron scattering experiments

Analysis includes effects of Melosh-Wigner rotation on polarized distributions

Abstract

We consider the extension of the statistical parton distributions to include their transverse momentum dependence, by using two different methods, one is based on our quantum statistical approach, the other on a relativistic covariant method. We take into account the effects of the Melosh-Wigner rotation for the polarized distributions. The results obtained can be compared with recent semiinclusive Deep Inelastic Scattering data on the cross section and double longitudinal-spin asymmetries from JLab. We also give some predictions for future experiments on electron-neutron scattering.