Spin-Dependent Triaxial Deformation in Neutron-Rich Mo Isotopes

Aug 26, 1996
3 pages
Published in:
  • Phys.Rev.Lett. 77 (1996) 1711-1714

Citations per year

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Abstract: (APS)
The Eurogam-2 array has been used to study γ rays emitted following the spontaneous fission of a Cm248 source. Analysis of Doppler-broadened line shapes corresponding to decays from excited rotational states in neutron-rich Sr, Zr, and Mo fission fragments has enabled the first measurements of state lifetimes in these nuclei at around I=10. The results are consistent with a predicted rotation-induced change in the triaxiality of the yrast states of the Mo isotopes that contrasts with the more stable behavior observed in the Zr and Sr nuclei.
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  • 23.20.Lv
  • 21.20.Ky
  • 21.10.Tg