Dynamical Polarizabilities of SU(3) Octet of Baryons
Abstract
We present calculations and an analysis of the spin-independent dipole electric and magnetic dynamical polarizabilities for the lowest in mass SU(3) octet of baryons. These extensive calculations are made possible by the recent implementation of semi-automatized calculations in Chiral Perturbation Theory which allows evaluating dynamical spin-independent electromagnetic polarizabilities from Compton scattering up to next-to-the-leading order. Our results are in good agreement with calculations performed for nucleons found in the literature. The dependencies for the range of photon energies up to 1 GeV, covering the majority of the meson photo production channels, are analyzed. The separate contributions into polarizabilities from the various baryon meson clouds are studied.
Keywords
Cite
@article{arxiv.1010.3457,
title = {Dynamical Polarizabilities of SU(3) Octet of Baryons},
author = {A. Aleksejevs and S. Barkanova},
journal= {arXiv preprint arXiv:1010.3457},
year = {2011}
}
Comments
10 pages, 7 figures, extended analysis of hyperon polarizabilities