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DOE OSTI · 22560334

Microscopically derived potential energy surfaces from mostly structural considerations

Ermamatov, M. J.
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Abstract

A simple procedure to estimate the quadrupole Potential-Energy-Surface (PES) is presented, using mainly structural information, namely the content of the shell model space and the Pauli exclusion principle. Further microscopic properties are implicitly contained through the use of results from the Möller and Nix tables or experimental information. A mapping to the geometric potential is performed yielding the PES. The General Collective Model is used in order to obtain an estimate on the spectrum and quadrupole transitions, adjusting only the mass parameter. First, we test the conjecture on known nuclei, deriving the PES and compare them to known data. We will see that the PES approximates very well the structure expected. Having acquired a certain confidence, we predict the PES of several chain of isotopes of heavy and super-heavy nuclei and at the end we investigate the structure of nuclei in the supposed island of stability. One of the main points to show is that simple assumptions can provide already important information on the structure of nuclei outside known regions and that spectra and electromagnetic transitions can be estimated without using involved calculations and assumptions. The procedure does not allow to calculate binding energies. The method presented can be viewed as a starting point for further improvements.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSBINDING ENERGYCOLLECTIVE MODELCOMPARATIVE EVALUATIONSENERGY-LEVEL TRANSITIONSHEAVY NUCLEINUCLEAR STRUCTUREPAULI PRINCIPLEPOTENTIAL ENERGYSHELL MODELSSURFACESTRANSACTINIDE ELEMENTS

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Ermamatov, M. J.. 2016-08-15. Microscopically derived potential energy surfaces from mostly structural considerations. https://doi.org/10.1016/j.aop.2016.04.010

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