One-loop calculations of hyperon polarizabilities under the large nc consistency condition

Y. Tanushi, S. Saito, M. Uehara

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The spin-averaged electromagnetic polarizabilities of the hyperons Δ and Σ are calculated within the one-loop approximation by use of the dispersion theory. The photon and meson couplings to hyperons are determined so as to satisfy the large Nc consistency condition. It is shown that in order for the large Nc consistency condition to hold, exotic hyperon states such as Σ** with I=2 and J=3/2 are required in the calculation of the magnetic polarizability of the Σ state. * Electronic address: tanushi@nuc-th.phys.nagoya-u.ac.jp † Electronic address: saito@nuc-th.phys.nagoya-u.ac.jp.

Original languageEnglish
Article number055204
Pages (from-to)552041-552048
Number of pages8
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number5
Publication statusPublished - 2000 May

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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