English

Spin-Polarizabilities of the Nucleon in Chiral Soliton Model with Dispersion Relation

Nuclear Theory 2009-10-31 v1 High Energy Physics - Phenomenology

Abstract

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 NπN\pi and Δπ\Delta\pi channels in the pion-photoproduction amplitude, and also evaluate the contribution of the anomalous term of the π0γγ\pi^0\gamma\gamma process. In a narrow decay-width limit of the Δ\Delta 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.

Keywords

Cite

@article{arxiv.nucl-th/9901010,
  title  = {Spin-Polarizabilities of the Nucleon in Chiral Soliton Model with Dispersion Relation},
  author = {Y. Tanushi and S. Saito and M. Uehara},
  journal= {arXiv preprint arXiv:nucl-th/9901010},
  year   = {2009}
}

Comments

21 pages, REVTeX, 4 postscript figures