K− Nucleus Elastic Scattering and Momentum-Dependent Optical Potentials**The project supported by National Natural Science Foundation of China under Grant No. 10275037, and the Research Fund for the Doctoral Program of Higher Education of China under Grant No. 20010055012

Abstract

The K− nucleus differential elastic scattering cross section for 12C and 40Ca at is calculated with three momentum-dependent optical potential models, which are density-dependent, relativistic mean field, and hybrid model, respectively. It is found that the forms of momentum-dependent optical potential models proposed by us are reasonable and gain success in the calculations and the momentum-dependent hybrid model is the best model for the K− nucleus elastic scattering.