On the definition of the nucleon axial charge density
We work out the spatial density distributions corresponding to the axial-vector charge density operator for spin-1/2 systems using states described by sharply localized wave packets. The static approximation, leading to the frequently assumed Breit-frame distributions, is also considered. We discuss the interpretation of the resulting spatial densities in terms of the axial charge density.
Authors
- J. Gegelia (ORCID: https://orcid.org/0000-0002-5720-9978)
- T.A. Lähde
- E. Epelbaum (ORCID: https://orcid.org/0000-0002-7613-0210)
- J. Yu. Panteleeva
Institutions
- Tbilisi State University (GE)
- University of Bonn (DE)
- Forschungszentrum Jülich (DE)
- Beihang University (CN)
- Ruhr University Bochum (DE)
Publication Details
- Journal
- Physics Letters B
- Published
- 2026-02-09
- DOI
- https://doi.org/10.1016/j.physletb.2026.140263
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00