Spin polarizabilities of the nucleon in a large Nc baryon model with dispersion relations

Y. Tanushi, S. Saito, M. Uehara

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We calculate the spin polarizabilities of the nucleon by means of the dispersion relations applied to model-independent pion photoproduction amplitudes both in the N π and Δ π channels. Here, we follow the idea of the 1/N C expansion. By careful application of dispersion relations we show that the spin polarizabilities coincide with those in heavy baryon chiral perturbation theory, if we take the narrow decay-width limit of the Δ particle.

Original languageEnglish
Article number065213
Pages (from-to)652131-652136
Number of pages6
JournalPhysical Review C - Nuclear Physics
Issue number6
Publication statusPublished - 1999 Dec

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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