Dynamical Polarizabilities of SU(3) Octet of Baryons

Details Dynamical Polarizabilities of SU(3) Octet of Baryons Dynamical Polarizabilities of SU(3) Octet of Baryons

2010-10-17

arxiv.org/abs/1010.3457v2

J.Phys.G38:035004,2011

Physics

Nuclear Physics

Nuclear Theory

10 pages, 7 figures, extended analysis of hyperon polarizabilities

Scientific paper

10.1088/0954-3899/38/3/035004

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.

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