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arXiv · 1311.1556

Neutral $s$ States in Loosely Bound Nuclei

C. R. Hoffman·B. P. Kay·J. P. Schiffer
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Abstract

In reviewing the data that has accumulated in light nuclei we find that the binding energy plays a critical role in describing the variation in energy of $s$ states relative to other states. The behavior of states with zero angular momentum within a few MeV of threshold is qualitatively different from that of neutron states with any other $\ell$ value or of any proton state. This observation is explored for simple Woods-Saxon potentials and is remarkably successful in describing a wealth of experimental data for nuclei with neutron numbers between 5 and 10. The lingering of neutron $s$ states just below threshold is associated with the increases in radii of the neutron density distributions, the neutron halos, and leads to speculations about possible halos in heavier nuclei.

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C. R. Hoffman, B. P. Kay, J. P. Schiffer. 2014-06-18. Neutral $s$ States in Loosely Bound Nuclei. https://doi.org/10.1103/physrevc.89.061305

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