Octupole Correlations in the Pu Isotopes: From Vibration to Static Deformation?
I. WiedenhöverArgonne National Laboratory, Argonne, Illinois 60439R. V. F. JanssensArgonne National Laboratory, Argonne, Illinois 60439G. HackmanUniversity of Kansas, Lawrence, Kansas 66045I. AhmadArgonne National Laboratory, Argonne, Illinois 60439J. P. GreeneArgonne National Laboratory, Argonne, Illinois 60439H. AmroArgonne National Laboratory, Argonne, Illinois 60439P. BhattacharyyaPurdue University, West Lafayette, Indiana 47907M. P. CarpenterArgonne National Laboratory, Argonne, Illinois 60439P. ChowdhuryUniversity of Massachusetts, Lowell, Massachusetts 01854J. A. CizewskiArgonne National Laboratory, Argonne, Illinois 60439D. ClineUniversity of Rochester, Rochester, New York 14627T. L. KhooArgonne National Laboratory, Argonne, Illinois 60439T. LauritsenArgonne National Laboratory, Argonne, Illinois 60439C. J. ListerArgonne National Laboratory, Argonne, Illinois 60439A. O. MacchiavelliLawrence Berkeley National Laboratory, Berkeley, California 94720D. NisiusArgonne National Laboratory, Argonne, Illinois 60439P. ReiterArgonne National Laboratory, Argonne, Illinois 60439E. H. SeaburyUniversity of Massachusetts, Lowell, Massachusetts 01854D. SeweryniakArgonne National Laboratory, Argonne, Illinois 60439S. SiemArgonne National Laboratory, Argonne, Illinois 60439A. A. SonzogniArgonne National Laboratory, Argonne, Illinois 60439J. UusitaloArgonne National Laboratory, Argonne, Illinois 60439C. Y. WuUniversity of Rochester, Rochester, New York 14627
1999en
ABI
Аннотация
In a series of measurements with Gammasphere, striking differences were found between the yrast and negative parity bands in ${}^{238--240}\mathrm{Pu}$ and those in ${}^{241--244}\mathrm{Pu}$. These differences can be linked to variations with mass of the strength of octupole correlations. At the highest spins, ${}^{238--240}\mathrm{Pu}$ are found to exhibit properties associated with stable octupole deformation, suggesting that a transition with spin from a vibration to stable deformation may have occurred.
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