Comparative study of nuclear effects in polarized electron scattering from 3He

TL;DR

This paper analyzes nuclear effects in polarized 3He electron scattering, comparing theoretical models and exploring how nuclear components influence neutron structure extraction and quasielastic scattering predictions.

Contribution

It provides a detailed comparison of nuclear effect models in polarized 3He scattering and assesses their impact on neutron structure extraction and quasielastic scattering predictions.

Findings

Effective polarization approximation's limitations identified.

Impact of omponents and off-shell corrections quantified.

Predictions for Q^2 dependence of quasielastic scattering provided.

Abstract

We present a detailed analysis of nuclear effects in inclusive electron scattering from polarized 3He nuclei for polarization asymmetries, structure functions and their moments, both in the nucleon resonance and deep-inelastic regions. We compare the results of calculations within the weak binding approximation at finite Q^2 with the effective polarization ansatz often used in experimental data analyses, and explore the impact of \Delta\ components in the nuclear wave function and nucleon off-shell corrections on extractions of the free neutron structure. Using the same framework we also make predictions for the Q^2 dependence of quasielastic scattering from polarized 3He, data on which can be used to constrain the spin-dependent nuclear smearing functions in 3He.