Hyperon elastic electromagnetic form factors in the space-like momentum region
High Energy Physics - Phenomenology
2016-03-03 v3 High Energy Physics - Experiment
Nuclear Theory
Abstract
We present a calculation of the electric and magnetic form factors of ground-state octet and decuplet baryons including strange quarks. We work with a combination of Dyson-Schwinger equations for the quark propagator and covariant Bethe-Salpeter equations describing baryons as bound states of three (non-perturbative) quarks. Our form factors for the octet baryons are in good agreement with corresponding lattice data at finite ; deviations in some isospin channels for the magnetic moments can be explained by missing meson cloud effects. At larger our quark core calculation has predictive power for both, the octet and decuplet baryons.
Keywords
Cite
@article{arxiv.1512.00833,
title = {Hyperon elastic electromagnetic form factors in the space-like momentum region},
author = {Helios Sanchis-Alepuz and Christian S. Fischer},
journal= {arXiv preprint arXiv:1512.00833},
year = {2016}
}
Comments
14 pages, 6 figures, 7 tables. Version 2: layout improved. Version 3: Matches the published version