Elsevier

Nuclear Physics A

Volume 292, Issues 1–2, 21–28 November 1977, Pages 125-143
Nuclear Physics A

The Jπ = 92+ bands in odd-mass Sb and I isotopes: Evidence for deformed states?

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Abstract

In the odd-mass 113−119Sb and 117−127I nuclei, bands with ΔJ = 1 spacing have been observed built on a low-lying 92+ state. We have described these bands as resulting from a band-mixing calculation at the equilibrium deformation corresponding with the 92+[404] Nilsson orbital. Total potential energy surfaces, energy spectra as well as electromagnetic properties for these nuclei are presented and compared with the experimental data. Failure in describing the observed phenomena within a harmonic core coupling model is pointed out. Therefore hole-anharmonic core coupling calculations have been performed in order to obtain the ΔJ = 1 band structure as well as improved intensity rules. Results from both the band-mixing and hole-anharmonic core coupling calculations are compared and similarities are pointed out.

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  • Cited by (0)

    IWONL fellow.

    ††

    Aangesteld navorser of the NFWO.

    †††

    Aspirant of the NFWO.

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