Spin-Orbit Dynamics from the Gluon Asymmetry

TL;DR

This paper explores the proton's orbital angular momentum by modeling the gluon asymmetry and applying the Jz = 1/2 sum rule, providing scenarios and phenomenological insights into proton structure.

Contribution

It introduces constrained models of gluon asymmetry to analyze the proton's angular momentum, offering new approaches to understanding its internal dynamics.

Findings

Multiple scenarios for proton angular momentum are proposed.

Models align with existing phenomenological data.

Insights into the gluon contribution to proton spin are provided.

Abstract

Determination of the orbital angular momentum of the proton is a difficult but important part of understanding fundamental structure. Insight can be gained from suitable models of the gluon asymmetry applied to the Jz = 1/2 sum rule. We have constrained the models of the asymmetry to gain possible scenarios for the angular momentum of the proton's constituents. Results and phenomenology for determining Lz are presented.