Ab-initio No-Core Gamow Shell Model calculations with realistic interactions
Abstract
No-Core Gamow Shell Model (NCGSM) is applied for the first time to study selected well-bound and unbound states of helium isotopes. This model is formulated on the complex energy plane and, by using a complete Berggren ensemble, treats bound, resonant, and scattering states on equal footing. We use the Density Matrix Renormalization Group method to solve the many-body Schr\"{o}dinger equation. To test the validity of our approach, we benchmarked the NCGSM results against Faddeev and Faddeev-Yakubovsky exact calculations for H and He nuclei. We also performed {\textit ab initio} NCGSM calculations for the unstable nucleus He and determined the ground state energy and decay width, starting from a realistic NLO chiral interaction.
Cite
@article{arxiv.1301.7140,
title = {Ab-initio No-Core Gamow Shell Model calculations with realistic interactions},
author = {G. Papadimitriou and J. Rotureau and N. Michel and M. Płoszajczak and B. R. Barrett},
journal= {arXiv preprint arXiv:1301.7140},
year = {2015}
}
Comments
17 pages, 14 figures. Revised version. Discussion on microscopic overlap functions, SFs and ANCs is added. Added references. Accepted for publication at PRC