The process $\gamma +t\to n+d$ is treated by means of three-body integral equations employing in their kernel the $W$-matrix representation of the subsystem amplitudes. As compared to the plane wave (Born) approximation the full solution of the integral equations, which takes into account the final state interaction, shows at low energies a 24% enhancement. The calculations are based on the semirealistic Malfliet-Tjon and the realistic Paris and Bonn $B$ potentials. For comparison with earlier calculations we also present results for the Yamaguchi potential. In the low-energy region a remarkable potential dependence is observed, which vanishes at higher energies.

• Received 11 October 1996

DOI:https://doi.org/10.1103/PhysRevC.55.1074