Mean-lifetime measurements within the superdeformed second minimum in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ce</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>132</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

A. J. Kirwan; G. C. Ball; P. J. Bishop; M. J. Godfrey; P. J. Nolan; D. J. Thornley; D. J. G. Love; A. H. Nelson

doi:10.1103/PhysRevLett.58.467

Mean-lifetime measurements within the superdeformed second minimum in ${}^{132}{Ce}$

A. J. Kirwan, G. C. Ball, P. J. Bishop, M. J. Godfrey, P. J. Nolan, D. J. Thornley, D. J. G. Love, and A. H. Nelson

Phys. Rev. Lett. 58, 467 – Published 2 February 1987

Abstract

A rotational band has been studied in ${}^{132}{Ce}$ to a spin above 50ħ. Lifetime measurements have resulted in a large quadrupole moment corresponding to a deformation β∼0.5. This is consistent with the moment of inertia determined from the energy-level spacing. These data are the first measurements of collectivity of discrete lines at high spin within the superdeformed second minimum.