Scattering of Dirac waves off Kerr black holes

Chandrasekhar separated the Dirac equation for spinning and massive particl es in Kerr geometry into radial and angular parts. Here we solve the comple te wave equation and find out how the Dirac wave scatters off Kerr black ho les. The eigenfunctions, eigenvalues and reflection and transmission co-eff icients are computed. We compare the solutions with several parameters to s how how a spinning black hole recognizes the mass and energy of incoming wa ves. Very close to the horizon the solutions become independent of the part icle parameters, indicating the universality of the behaviour.