Collectivity-induced quenching of signatures for shell closures

Abstract

Mass differences are an often used as signature and measure for shell closure. Using the angular-momentum projected Generator Coordinate Method and the Skyrme interaction SLy4, we analyze the modification of mass differences due to static deformation and dynamic fluctuations around the mean-field ground state.

arXiv comment7 pages, 4 figures

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• Toward global beyond-mean-field calculations of nuclear masses and low-energy spectra
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• Systematic study of infrared energy corrections in truncated oscillator spaces
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