Abstract
The pole approximation that Narodetskii introduced into the theory of four-particle scattering is here applied to , which is assumed to be composed of four structureless α particles. The binding energy of the excited state of was calculated by using an Irving variational wave functions for the ground state of and taking both Yukawa and exponential potentials. In the light of earlier theoretical results on , comparing the present results with experiment suggests that at least for calculation of the bound states, the -particle model of is reasonable.
- Received 13 March 1972
DOI:https://doi.org/10.1103/PhysRevC.6.677
©1972 American Physical Society