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DOE OSTI · 1809138

Shape phase changes with N in 72-84 Kr isotopes

Gupta, J. B.·Hamilton, J. H.
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Abstract

The Kr isotopes lying in between the lighter isotopes of (Zn, Ge, and Se) and the heavier isotopes of (Sr and Zr) in the A=70-80 region exhibit very interesting spectral features. The spectra of 72-84 Kr isotopes display a striking contrast from those of Zn, Ge and Se isotopes. The role of spherical and oblate and prolate deformed subshell gaps at specific Z and N and the resulting re-inforcement are strikingly evident in these contrasting features, with variation in Z or N. The evolution of the spectral features in Kr isotopes with N as reflected in the quadrupole deformation, K-band structures, E0 decay, B(E2) values, β-softness of the nuclear core, and odd–even staggering in K π = 2 + γ-bands is studied to explore the role of the under lying nuclear interactions. Further, the correlations with odd–A isotopes are explored. The shape co-existence displayed in some Kr isotopes is studied. The large deformation observed in the ground bands of 74,76 Kr, as exhibited in the B(E2) values is especially interesting.

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74 ATOMIC AND MOLECULAR PHYSICS

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BibTeXRIS

Gupta, J. B., Hamilton, J. H.. 2020-11-03. Shape phase changes with N in 72-84 Kr isotopes. https://doi.org/10.1142/s0218301320300088

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