On the Spin content of the Nucleon
N.F. Nasrallah (Lebanese University, Faculty of Science)
TL;DR
This paper revises a QCD sum rule calculation of the nucleon's spin content, improving numerical stability and supporting the conclusion that gluons carry about half of the nucleon spin.
Contribution
It introduces a different approach to evaluating bilocal contributions and extracting nucleon pole residues, enhancing the stability of the results.
Findings
Gluons carry about half of the nucleon spin
Improved numerical stability over previous methods
Supports the conclusion of significant gluon contribution
Abstract
A QCD sum rule calculation of Balistky and Ji on the spin content of the nucleon is done with a different approach to the evaluation of the bilocal contributions and to the extraction of the nucleon pole residues. The result obtained is much more numerically stable which puts their conclusion that about half of the nucleon spin is carried by gluons on firmer ground.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.