Ab initio nuclear structure calculations of light nuclei

Abstract

We perform no-core configuration interaction calculations for nuclei in the p-shell. We show that for typical light nuclei, a truncation on the total number of quanta in the many-body system converges much more rapidly than a full configuration interaction (FCI) truncation, which is a truncation on the single-particle basis space. We present new results for the ground state energies of the Be isotopes with the nonlocal two-body potential JISP16, and discuss emerging phenomena such as clustering and rotational band structures in 9Be. We also show that the anomalously suppressed beta decay of 14C to the ground state of 14N can be reproduced using two- and three-nucleon forces from chiral effective field theory. In particular the structure of the ground state of 14N is sensitive to the three-nucleon force.

accepted for publication in the proceedings of CCP2011; to be published by J. Phys. Conf. Series

References in corpus (6)

• Structure of A=10-13 nuclei with two- plus three-nucleon interactions from chiral effective field theory
• Three-Nucleon Low-Energy Constants from the Consistency of Interactions and Currents in Chiral Effective Field Theory
• Ab initio no-core full configuration calculations of light nuclei
• Convergence in the no-core shell model with low-momentum two-nucleon interactions
• Large basis ab initio shell model investigation of 9-Be and 11-Be
• 6He beta-decay rate and the suppression of the axial constant in nuclear matter

Cited by in corpus (12)

• Emergence of rotational bands in ab initio no-core configuration interaction calculations of the Be isotopes
• Cluster structure of light nuclei
• Emergence of rotational bands in ab initio no-core configuration interaction calculations of light nuclei
• Structure of A = 7 - 8 nuclei with two- plus three-nucleon interactions from chiral effective field theory
• Evidence for Triangular D'(3h) Symmetry in 13C
• Emergent Sp(3,R) dynamical symmetry in the nuclear many-body system from an ab initio description
• Probing ab initio emergence of nuclear rotation
• Robust ab initio prediction of nuclear electric quadrupole observables by scaling to the charge radius
• Quadrupole moments and proton-neutron structure in p-shell mirror nuclei
• Nuclear matter with JISP16 NN interaction
• Perspectives on Nuclear Structure and Scattering with the Ab Initio No-Core Shell Model
• Robust ab initio predictions for dimensionless ratios of E2 and radius observables. II. Estimation of E2 transition strengths by calibration to the charge radius