Canonical and kinetic decompositions of the proton spin
High Energy Physics - Phenomenology
2022-03-02 v1 Nuclear Theory
Abstract
We propose a short summary of the present situation concerning the proton spin decomposition. We briefly discuss some of the main controversies about the issues of gauge invariance, uniqueness and measurability. As a conclusion, we argue that part of the controversies is actually undecidable.
Keywords
Cite
@article{arxiv.1302.0111,
title = {Canonical and kinetic decompositions of the proton spin},
author = {Cédric Lorcé},
journal= {arXiv preprint arXiv:1302.0111},
year = {2022}
}
Comments
4 pages, contribution to the proceedings of the 3rd Workshop on the QCD Structure of the Nucleon (QCD-N'12), Oct 22-26, Bilbao, Spain