Ground State of ^4-7H Considering Internal Collective Rotation

S. Paschalis, G. S. Anagnostatos

Institute of Nuclear Physics, National Center for Scientific Research “Demokritos”, Aghia. Paraskevi, 15310 Greece.
Lawrence Berkeley National Laboratory, Berkeley, California, 94720 USA.

DOI: 10.4236/jmp.2013.45B012                

Abstract

The g.s. of heavy and superheavy hydrogen isotopes, namely ^4-7 H, are successfully examined by applying the Isomorphic Shell Model. Properties examined are binding energies and effective radii. The novelty of the present work is that, due to the small number of nucleons involved and the subsequently large deformation, an internal collective rotation appears which is inseparable from the usual internal motion even in the ground states of these nuclei, i.e., for such nuclei the adiabatic approximation is not valid. This extra degree of freedom leads to a reduction of binding energies, an increase of effective radii, and an increase of level widths.

Keywords

Hydrogen Isotopes ⁴H, ⁵H, ⁶H, and ⁷H; Cluster Models; Isomorphic Shell Model; Drip Lines; Internal Collective Rotation

Conflicts of Interest

The authors declare no conflicts of interest.

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