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- Title
Spectroscopy of light nuclei with realistic NN interaction JISP.
- Authors
Shirokov, A. M.; Vary, J. P.; Mazur, A. I.; Weber, T. A.
- Abstract
Recent results of our systematic ab initio studies of the spectroscopy of s- and p-shell nuclei in fully microscopic large-scale (up to a few hundred million basis functions) no-core shell-model calculations are presented. A new high-quality realistic nonlocal NN interaction JISP is used. This interaction is obtained in the J-matrix inverse-scattering approach (JISP stands for the J-matrix inverse-scattering potential) and is of the form of a small-rank matrix in the oscillator basis in each of the NN partial waves, providing a very fast convergence in shell-model studies. The current purely two-body JISP model of the nucleon-nucleon interaction JISP16 provides not only an excellent description of two-nucleon data (deuteron properties and np scattering) with χ2/datum = 1.05 but also a better description of a wide range of observables (binding energies, spectra, rms radii, quadrupole moments, electromagnetic-transition probabilities, etc.) in all s-and p-shell nuclei than the best modern interaction models combining realistic nucleon-nucleon and three-nucleon interactions.
- Subjects
SPECTRUM analysis; ATOMIC orbitals; NUCLEON-nucleon interactions; NUCLEAR reactions; PARTICLES (Nuclear physics)
- Publication
Physics of Atomic Nuclei, 2008, Vol 71, Issue 7, p1232
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/S1063778808070168