Nonperturbative shell-model interactions from the in-medium similarity renormalization group
Nuclear Theory
2014-10-08 v2 Nuclear Experiment
Abstract
We present the first ab initio construction of valence-space Hamiltonians for medium-mass nuclei based on chiral two- and three-nucleon interactions using the in-medium similarity renormalization group. When applied to the oxygen isotopes, we find experimental ground-state energies are well reproduced, including the flat trend beyond the drip line at 24O. Similarly, natural-parity spectra in 21,22,23,24O are in agreement with experiment, and we present predictions for excited states in 25,26O. The results exhibit a weak dependence on the harmonic-oscillator basis parameter and reproduce spectroscopy within the standard sd valence space.
Cite
@article{arxiv.1402.1407,
title = {Nonperturbative shell-model interactions from the in-medium similarity renormalization group},
author = {S. K. Bogner and H. Hergert and J. D. Holt and A. Schwenk and S. Binder and A. Calci and J. Langhammer and R. Roth},
journal= {arXiv preprint arXiv:1402.1407},
year = {2014}
}
Comments
6 pages, 5 figures, published version