Dirac equation in Newman Penrose formalism: separation in Schwarzschild space time with torsion

The Dirac equation, previously formulated in a general space time with torsion by the Newman Penrose formalism, is considered in the context of the Schwarzschild space time with torsion. Based on a suitable null tetrad frame, the equation is separated by a variable separation method. The separated angular equations are integrated. The separated radial dependence is reduced, on the base of elementary properties of the solutions, to the solution of a single non linear one dimensional differential equation in the wave function and in its complex conjugate.