Elsevier

Physics Letters B

Volume 218, Issue 2, 16 February 1989, Pages 137-142
Physics Letters B

Superdeformed bands in 150Gd and 151Tb: Evidence for the influence of high-N intruder states at large deformations

https://doi.org/10.1016/0370-2693(89)91408-1Get rights and content

Abstract

Rotational bands, characteristic of a superdeformed prolate shape (ε≈0.6) and extending to above spin 60h̵, have been observed in both 150Gd and 151Tb. The magnitudes of the moments of inertia I(2) were found to vary with frequency and the variation greatly exceeded that seen in 148,149Gd and 151,152Dy. The differences in the I(2)'s are attributed to the occupation of particular high-N orbitals. Moreover, contrary to the previous examples the bands in both 150Gd and 151Tb de-excited at a much higher rotational frequency of h̵ω≈0.4MeV and this may indicate that the pair gap extends to higher frequencies in 150Gd and 151Tb.

References (13)

  • V.M. Strutinsky

    Nucl. Phys. A

    (1967)
  • J. Dudek et al.

    Phys. Rev. C

    (1985)
  • P.J. Twin

    Phys. Rev. Lett.

    (1986)
  • T. Bengtsson et al.

    Phys. Lett. B

    (1988)
  • P.J. Twin

    Nucl. Phys. A

    (1983)
  • B. Herskind

    Phys. Rev. Lett.

    (1987)
There are more references available in the full text version of this article.

Cited by (73)

  • Nuclear Data Sheets for A=150

    2013, Nuclear Data Sheets
  • Nuclear Data Sheets for A = 151

    2009, Nuclear Data Sheets
  • Lifetimes of yrast and excited superdeformed states in <sup>150</sup>Gd: Effect of particle-hole excitations on the deformation

    1998, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
View all citing articles on Scopus
View full text