Spin - Polarizabilities of the Nucleon in Chiral Soliton Model with Dispersion Relation
نویسنده
چکیده
We calculate the spin-polarizabilities of the nucleon by means of dispersion relation, where the pion photoproduction amplitude predicted by chiral soliton model is utilized. We consider the Nπ and ∆π channels in the pion-photoproduction amplitude, and also evaluate the contribution of the anomalous term of the π0γγ process. In a narrow decay-width limit of the ∆ particle the result coincides with that in heavy baryon chiral perturbation theory (HBChPT) except for the interference part of the electric and magnetic amplitudes. A comparison with the multipole analysis is given.
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