Relativistic Energies and Scattering Phase Shifts for the Fermionic   Particles Scattered by Hyperbolical potential with the Pseudo (Spin) Symmetry
  In this paper, we studied the approximate scattering state solutions of the Dirac equation with the hyperbolical potential with pseudospin and spin symmetries. Using a suitable short range approximation within the formalism of functional analytical method, we obtained the spin-orbit quantum numbers dependent scattering phase shifts for the spin and pseudospin symmetries. The normalization constants, lower and upper radial spinor for the two symmetries and the relativistic energy spectra were presented. Our results reveal that both the symmetry constants (C_ps and C_s) and the spin-orbit quantum number \k{appa} affect scattering phase shifts significantly. 
Kayode John Oyewumi and Oluwatimilehin Joshua Oluwadare
quant-ph