Polarized $^3$He target and final state interactions in SiDIS

TL;DR

This paper discusses the study of polarized helium-3 targets and the role of final state interactions in semi-inclusive deep-inelastic scattering experiments at Jefferson Lab, aiming to improve understanding of neutron structure and parton distributions.

Contribution

It provides a preliminary analysis of final state interactions in SiDIS with polarized helium-3, enhancing the theoretical modeling of nuclear initial and final states.

Findings

Preliminary insights into FSI effects in SiDIS with polarized $^3$He.

Implications for accurate flavor decomposition of TMDs.

Guidance for constructing realistic nuclear models in scattering experiments.

Abstract

Jefferson Lab (JLab) is starting a wide experimental program aimed at studying the neutron's structure, with a great emphasis on the extraction of the parton transverse-momentum distributions (TMDs). To this end, Semi-inclusive deep-inelastic scattering (SiDIS) experiments on polarized $^3$He will be carried out, providing, together with proton and deuteron data, a sound flavor decomposition of the TMDs. Given the expected high statistical accuracy, it is crucial to disentangle nuclear and partonic degrees of freedom to get an accurate theoretical description of both initial and final states. In this contribution, a preliminary study of the Final State Interaction (FSI) in the standard SiDIS, where a pion (or a Kaon) is detected in the final state is presented, in view of constructing a realistic description of the nuclear initial and final states.