Structure of A=10-13 nuclei with two- plus three-nucleon interactions from chiral effective field theory
Abstract
Properties of finite nuclei are evaluated with two-nucleon (NN) and three-nucleon (NNN) interactions derived within chiral effective field theory (EFT). The nuclear Hamiltonian is fixed by properties of the A=2 system, except for two low-energy constants (LECs) that parameterize the short range NNN interaction. We constrain those two LECs by a fit to the A=3 system binding energy and investigate sensitivity of 4He, 6Li, 10,11B and 12,13C properties to the variation of the constrained LECs. We identify a preferred choice that gives globally the best description. We demonstrate that the NNN interaction terms significantly improve the binding energies and spectra of mid-p-shell nuclei not just with the preferred choice of the LECs but even within a wide range of the constrained LECs. At the same time, we find that a very high quality description of these nuclei requires further improvements to the chiral Hamiltonian.
Keywords
Cite
@article{arxiv.nucl-th/0701038,
title = {Structure of A=10-13 nuclei with two- plus three-nucleon interactions from chiral effective field theory},
author = {P. Navratil and V. G. Gueorguiev and J. P. Vary and W. E. Ormand and A. Nogga},
journal= {arXiv preprint arXiv:nucl-th/0701038},
year = {2008}
}
Comments
4 pages, 4 figures