Abstract
A variational Monte Carlo method is used to generate sets of orthogonal trial functions, , for given quantum numbers in various light -shell nuclei. These are then used as input to Green’s function Monte Carlo (GFMC) calculations of first, second, and higher excited states. Realistic two- and three-nucleon interactions are used. We find that if the physical excited state is reasonably narrow, the GFMC energy converges to a stable result. With the combined Argonne two-nucleon and Illinois-2 three-nucleon interactions, the results for many second and higher states in nuclei are close to the experimental values.
- Received 31 August 2004
DOI:https://doi.org/10.1103/PhysRevC.70.054325
©2004 American Physical Society