Halo nuclei with the Coulomb-Sturmian basis

J. P. Vary; M. A. Caprio; P. Maris

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Halo nuclei with the Coulomb-Sturmian basis

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arxiv 1409.0108 v1 pith:2OKXZFR4 submitted 2014-08-30 nucl-th

M. A. Caprio , P. Maris , J. P. Vary This is my paper · ORCID

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keywords basiscalculationscoulomb-sturmianfallofffunctionshalonccinuclei

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The rapid falloff of the oscillator functions at large radius (Gaussian asymptotics) 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) radial falloff. NCCI calculations are carried out for the neutron-rich He isotopes, and estimates are made for the RMS radii of the proton and neutron distributions.

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