Several two- and one-dimensional distributions of unpolarized free-neutron decay are calculated. The results of the order-$\alpha$ model-independent radiative correction calculations are tabulated numerically. With these corrections the theoretical distributions become precise enough to make possible the determination of the ratio of the axial-vector to the vector weak coupling constants to a precision of ∼0.001.

• Received 26 May 1992

DOI:https://doi.org/10.1103/PhysRevD.47.2840