Separable expansions for local potentials with Coulomb interactions
- 1 September 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 14 (3), 782-788
- https://doi.org/10.1103/physrevc.14.782
Abstract
If two particles are interacting via a short range potential and a repulsive Coulomb potential the matrix can be written as a sum of the Coulomb and the "nuclear" matrices. In order to solve the three-nucleon problem with Coulomb interactions usually we need a separable representation of this nuclear matrix. A recently proposed method for finding a separable expansion for local potentials is here extended to find a rapidly convergent separable expansion, with analytic form factors, for the nuclear part of the matrix of a local potential, in the presence of Coulomb interactions. The method is illustrated for a two-term Malfliet-Tjon potential. In each rank the nuclear phase shift is close to the corresponding phase shift when the Coulomb interaction is switched off.
Keywords
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