Progress in the Development of Global Medium-Energy Nucleon-Nucleus Optical Model Potentials

摘要: Two existing global medium-energy nucleon-nucleus phenomenological optical model potentials are described and compared with experiment each other. The first of these employs a Dirac approach (second-order reduction) that is in projectile energy isospin applies to the target nucleus 208-Pb. Here standard S-V (isoscalar-scalar, isoscalar-vector) has been extended include corresponding isovector components by introduction relativistic Lane model. second equivalent Schroedinger equation energy, isospin, (Z,A). Here, particular attention given predictions for integrated scattering observables - neutron total cross sections proton reaction their sensitivity absorptive parts potential. Finally, current work influence nuclear bound state problem (treated mean field theory) on mentioned.