A density-tail repair method yields converged matter and charge radii for 4,6,8He and 6,7,8Li from Jacobi no-core shell model calculations with chiral forces.
Halo nuclei 6He and 8He with the Coulomb-Sturmian basis
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abstract
The rapid Gaussian falloff of the oscillator functions at large radius makes them poorly suited for the description of the asymptotic properties of the nuclear wave function, a problem which becomes particularly acute for halo nuclei. We consider an alternative basis for ab initio no-core configuration interaction (NCCI) calculations, built from Coulomb-Sturmian radial functions, allowing for realistic exponential falloff. NCCI calculations are carried out for the neutron halo nuclei 6,8He, as well as the baseline case 4He, with the JISP16 nucleon-nucleon interaction. Estimates are made for the root-mean-square radii of the proton and matter distributions.
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Radii of light nuclei from the Jacobi No-Core Shell Model
A density-tail repair method yields converged matter and charge radii for 4,6,8He and 6,7,8Li from Jacobi no-core shell model calculations with chiral forces.