Transverse Spin Structure Function g2(x, Q2 ) in the Valon model

TL;DR

This paper calculates the transverse spin structure function g2(x, Q^2) for nucleons and light nuclei using the valon model, providing a simple method for twist-3 contributions and comparing results with experimental data.

Contribution

It introduces a straightforward Mellin space approach to determine the twist-3 part of g2(x, Q^2) within the valon model, extending calculations to light nuclei.

Findings

Results agree well with experimental data

Provides a new method for twist-3 component calculation

Calculates g2 for proton, neutron, deuteron, and 3He

Abstract

The spin dependent structure function, g2ww(x,Q^2), is calculated in the valon model. A simple approach is given for the determination of the twist-3 part of the g2(x, Q^2) in Mellin space; thus, enabling us to obtain the full transverse structure function, g2(x, Q^2) for proton, neutron and the deuteron. In light of the new data, we have further calculated the transversely polarized structure function of g23He(x, Q^2). Our results are checked against the experimental data and nice agreements are observed.