Abstract
The free two-nucleon W matrices are studied for a number of two-nucleon channels, including coupled channels, and over a range of laboratory energies to 250 MeV. For realistic interactions these W matrices are shown to be simple, smooth, and real functions of (half-on-shell) momenta. The free two-nucleon t matrices are expanded in separable form by the W matrices and the (fully off-shell) remainder matrices left thereby should have a negligible effect in any (low-energy) few-body calculation.
- Received 30 July 1990
DOI:https://doi.org/10.1103/PhysRevC.43.1050
©1991 American Physical Society