Hyperon-nucleus folding potentials in the complex G-matrix approach

We have constructed the hyperon-nucleus optical potential based on the complex G-matrix folding model. The complex G-matrix interactions are derived from the extended-soft core (ESC) model interactions, ESC04a and ESC08. The elastic cross sections and analyzing powers are calculated using the folding-model potentials (FMPs) based on the complex G-matrix interactions. The strength functions for the (π−, K+) reaction are also obtained using the FMPs and are compared with the result calculated with a phenomenological repulsive optical potential. The ESC08 interaction gives a better result than does ESC04a.