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: email@example.com † Electronic address: firstname.lastname@example.org.
|Number of pages||8|
|Journal||Physical Review C - Nuclear Physics|
|Publication status||Published - 2000 May|
ASJC Scopus subject areas
- Nuclear and High Energy Physics