New Region of Deformation: The Neutron-Rich Sulfur Isotopes

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4 November 1996

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 77 (19) , 3967-3970
https://doi.org/10.1103/physrevlett.77.3967

Abstract

The energies and

B ({E 2; 0}_{g . s .}^{+} \to 2_{1}^{+})

values for the lowest

J^{π} {= 2}^{+}

states in the neutron-rich radioactive nuclei

^{38, 40, 42} S

and

^{44, 46} Ar

were measured via intermediate-energy Coulomb excitation. The results for

^{40, 42} S

provide the first evidence of moderate deformation near

N = 28

, while the effects of the

N = 28

shell closure persist in the

Z = 18

nucleus

^{46} Ar

.

Keywords

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