Exchange currents in octet hyperon charge radii
Nuclear Theory
2008-11-26 v1 High Energy Physics - Phenomenology
Abstract
Octet hyperon charge radii are calculated in a chiral constituent quark model including electromagnetic exchange currents between quarks. In impulse approximation one observes a decrease of the hyperon charge radii with increasing strangeness. This effect is reduced by exchange currents. Due to exchange currents, the charge radius of the negatively charged hyperons are close to the proton charge radius.
Keywords
Cite
@article{arxiv.nucl-th/9809015,
title = {Exchange currents in octet hyperon charge radii},
author = {Georg Wagner and A. J. Buchmann and Amand Faessler},
journal= {arXiv preprint arXiv:nucl-th/9809015},
year = {2008}
}
Comments
9 pages, 2 eps figures, RevTex, accepted for publication in Phys.Rev.C