Dirac Equation with Spin Symmetry for the Modified P\"oschl-Teller Potential in DD-dimensions

We present solutions of the Dirac equation with spin symmetry for vector and scalar modified P\"oschl-Teller potential within framework of an approximation of the centrifugal term. The relativistic energy spectrum is obtained using the Nikiforov-Uvarov method and the two-component spinor wavefunctions are obtain are in terms of the Jacobi polynomials. It is found that there exist only positive-energy states for bound states under spin symmetry, and the energy levels increase with the dimension and the potential range parameter $\alpha$.Comment: 9 pages and 1tabl

Double charge exchange on Te isotopes in the generalized seniority scheme

The pion double-charge-exchange reactions on the Te isotopes are discussed in the generalized seniority scheme, The elementary process of charge exchange is described in a double scattering process within the plane wave Limit. The transition rates are calculated for double-isobaric-analog state as well as for ground-state reactions