
%0 Journal Article
%A Afnan, IR 
%A Read, JM 
%T Separable Representation of the Nucleon-Nucleon Interaction in the 3S1?3D1 Channel
%J Australian Journal of Physics
%D 1973/12/01
%V 26
%N 6
%P 725-738
%K 
%R https://doi.org/10.1071/PH730725
%U https://www.publish.csiro.au/paper/PH730725 
%X A separable representation for the two-nucleon T-matrix in coupled channels has been obtained from a unitary pole expansion for the potential and the method has been tested with the Reid soft-core potential in the 3S,_3D1 channel. A 3-term expansion provides a T-matrix that is sufficiently accurate for a perturbation theory calculation of the three-nucleon bound state, while a IS-term expansion closely reproduces the exact T-matrix. In addition, a unitary pole approximation is presented that gives a better fit to the phase shifts and coupling parameter than that of Siebert et al. (1972). 
