The ``Spin'' Structure of the Nucleon - a lattice investigation
R.Altmeyer, M.Goeckeler, R.Horsley, E.Laermann, G.Schierholz
TL;DR
This paper presents a lattice QCD study of the nucleon spin structure, specifically evaluating the axial singlet current matrix element to understand the quark contribution to nucleon spin, aligning with experimental findings.
Contribution
It provides an indirect lattice calculation of the baryon axial singlet current, offering insights into the quark spin contribution consistent with experimental data.
Findings
Quarks do not carry a large fraction of the nucleon spin
Lattice results align with EMC experiment measurements
Provides a computational approach to nucleon spin structure
Abstract
We will discuss here an indirect lattice evaluation of the baryon axial singlet current matrix element. This quantity may be related to the fraction of nucleon spin carried by the quarks. The appropriate structure function has recently been measured (EMC experiment). As in this experiment, we find that the quarks do not appear to carry a large component of the nucleon spin.
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.