The Boer-Mulders Function: Models and Universality

TL;DR

This paper explores the Boer-Mulders function and its universality across hadrons, linking it to generalized parton distributions via chromodynamic lensing, supported by model calculations.

Contribution

It demonstrates that the sign of the Boer-Mulders function may be universal for all ground state hadrons based on model calculations of related GPDs.

Findings

The sign of the Boer-Mulders function is related to the GPD $ar{E}_T$.

Model calculations suggest the sign of $h_1^ot$ is consistent across ground state hadrons.

The mechanism of chromodynamic lensing connects the signs of these functions.

Abstract

The sign of the Boer-Mulders function $h_1^\perp$ is related to the sign of the GPD $\bar{E}_T$ through the mechanism of chromodynamic lensing. Model calculations of the sign of $\bar{E}_T$ indicate that the sign of $h_1^\perp$ may be the same in all ground state hadrons.