Naive time-reversal odd phenomena in semi-inclusive deep-inelastic scattering from light-cone constituent quark models

TL;DR

This paper investigates azimuthal asymmetries in semi-inclusive deep-inelastic scattering caused by time-reversal odd parton distributions, using a light-cone constituent quark model, and compares results with experimental data.

Contribution

It provides a detailed analysis of T-odd transverse-momentum dependent distributions within a light-cone quark model, including applicability and evolution considerations, and offers predictions for future experiments.

Findings

Good agreement with COMPASS and HERMES data

Model respects positivity constraints

Provides testable predictions for Jefferson Lab

Abstract

We present results for leading-twist azimuthal asymmetries in semi-inclusive lepton-nucleon deep-inelastic scattering due to naively time-reversal odd transverse-momentum dependent parton distribution functions from the light-cone constituent quark model. We carefully discuss the range of applicability of the model, especially with regard to positivity constraints and evolution effects. We find good agreement with available experimental data from COMPASS and HERMES, and present predictions to be tested in forthcoming experiments at Jefferson Lab.