Transverse Polarization of the Nucleon in Parton Picture
High Energy Physics - Phenomenology
2015-06-11 v1
Abstract
The proton's transverse polarization structure is examined in terms of the Lorentz-covariant Pauli-Lubanski vector in QCD. We find that there are contributions from leading, subleading, and next-to-subleading partonic contributions in the light-front system of coordinates. The subleading and next-to-subleading contributions are related to the leading one through Lorentz symmetry. And the leading contribution obeys a simple partonic angular momentum sum rule that gives a clear physical interpretation to a relation known previously.
Keywords
Cite
@article{arxiv.1209.3246,
title = {Transverse Polarization of the Nucleon in Parton Picture},
author = {Xiangdong Ji and Xiaonu Xiong and Feng Yuan},
journal= {arXiv preprint arXiv:1209.3246},
year = {2015}
}
Comments
10 pages