Wetro, Legesse (PhD)Tibesso, Tahir2018-07-042023-11-092018-07-042023-11-092014-06http://10.90.10.223:4000/handle/123456789/6181We calculate the cross section of the inverse beta decay process, e+n ! p+e􀀀 in curved spacetime in the presence of strong magnetic eld and.Using exact solutions of the Dirac equation in a curved space-time and Spinors of the Dirac Equation and its solution In Robertson-Walker Spacetime, we nd the cross section for arbitrary polarization of the initial neutrons.The magnetic eld might provide a net polarization of the neutrons, which we take into accountenInverse Beta-DecayThesis