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arXiv · 1510.05381

Evolution of $N = 28$ shell closure in relativistic continuum Hartree-Bogoliubov theory

Xuewei Xia
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Abstract

The $N = 28$ shell gap in sulfur, argon, calcium and titanium isotopes is investigated in the framework of relativistic continuum Hartree-Bogoliubov (RCHB) theory. The evolutions of neutron shell gap, separation energy, single particle energy and pairing energy are analyzed, and it is found that $N = 28$ shell gap is quenched in sulfur isotopes but persists in argon, calcium and titanium isotopes. The evolution of $N = 28$ shell gap in $N = 28$ isotonic chain is discussed, and the erosion of $N = 28$ shell gap is understood with the evolution of potential with proton number.

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Xuewei Xia. 2015-10-19. Evolution of $N = 28$ shell closure in relativistic continuum Hartree-Bogoliubov theory. https://doi.org/10.1088/1674-1137%2F40%2F7%2F074101

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