Neutron-deuteron breakup calculations with W-matrix representation of the two-body input

This paper provides a further test of employing the W-matrix representation of the two-body T matrix in three-nucleon calculations. Calculating differential neutron-deuteron breakup cross sections with the Malfliet-Tjon potentials I and III, we find that the single-term separable approximation for the two-body T matrix which follows from the W-matrix approach, when used as input in the three-nucleon Alt-Grassberger-Sandhas equations, leads to results which agree extremely well with benchmark results provided by Witala, Gloeckle, and Cornelius. The present investigations, thus, corroborate and extend the findings obtained previously for elastic neutron-deuteron scattering. Our theoretical results are also compared with recent experimental data obtained at Erlangen, and it is found that the Malfliet-Tjon potential supports a very good reproduction of the overall features of these data. We conclude that the W-matrix approach provides a remarkably simple and efficient tool for high-quality three-nucleon calculations