Effective hyperon-nucleon interactions in the relativistic mean field theory

The effective ??-nucleon interaction in single ?? hypernuclei is studied using the Relativistic Mean Field theory. Five sets of hyperon-meson coupling parameters, for ?? - ?? and ?? - ?? interactions, are obtained by fitting the recent data of the binding energy of a ?? in the 1s state of 13??C, B1s 1/2??. The detailed method is to fix one of the parameters to be a special value such as 2/3 or 1, or to suppose two of them be equal, and then the parameter sets are deduced. With these parameter sets determined from only this experimental quantity, we calculate the single-particle spectra of ?? in single-?? hypernuclei for a wide range of mass number from A = 9 to A = 208. The calculations reproduce the available data well.EI09939-9402