Octupole Correlations in the Pu Isotopes: From Vibration to Static Deformation?

I. Wiedenhöver; R. V. F. Janssens; G. Hackman; I. Ahmad; J. P. Greene; H. Amro; P. K. Bhattacharyya; M. P. Carpenter; P. Chowdhury; J. Cizewski; D. Cline; T. L. Khoo; T. Lauritsen; C. J. Lister; A. O. Macchiavelli; D. T. Nisius; P. Reiter; E. H. Seabury; D. Seweryniak; S. Siem; A. Sonzogni; J. Uusitalo; C. Y. Wu

doi:10.1103/PhysRevLett.83.2143

Octupole Correlations in the Pu Isotopes: From Vibration to Static Deformation?

I. Wiedenhöver, R. V. F. Janssens, G. Hackman, I. Ahmad, J. P. Greene, H. Amro, P. K. Bhattacharyya, M. P. Carpenter, P. Chowdhury, J. Cizewski, D. Cline, T. L. Khoo, T. Lauritsen, C. J. Lister, A. O. Macchiavelli, D. T. Nisius, P. Reiter, E. H. Seabury, D. Seweryniak, S. Siem, A. Sonzogni, J. Uusitalo, and C. Y. Wu

Phys. Rev. Lett. 83, 2143 – Published 13 September 1999

Abstract

In a series of measurements with Gammasphere, striking differences were found between the yrast and negative parity bands in $^{238 - 240} Pu$ and those in $^{241 - 244} Pu$ . These differences can be linked to variations with mass of the strength of octupole correlations. At the highest spins, $^{238 - 240} Pu$ 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.

Received 29 April 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.2143

Authors & Affiliations

I. Wiedenhöver¹, R. V. F. Janssens¹, G. Hackman², I. Ahmad¹, J. P. Greene¹, H. Amro^1,3,4, P. K. Bhattacharyya⁵, M. P. Carpenter¹, P. Chowdhury⁶, J. Cizewski^1,7, D. Cline⁸, T. L. Khoo¹, T. Lauritsen¹, C. J. Lister¹, A. O. Macchiavelli⁹, D. T. Nisius¹, P. Reiter¹, E. H. Seabury⁶, D. Seweryniak¹, S. Siem^1,10, A. Sonzogni¹, J. Uusitalo¹, and C. Y. Wu⁸

¹Argonne National Laboratory, Argonne, Illinois 60439
²University of Kansas, Lawrence, Kansas 66045
³North Carolina State University, Raleigh, North Carolina 27695,
⁴and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308
⁵Purdue University, West Lafayette, Indiana 47907
⁶University of Massachusetts, Lowell, Massachusetts 01854
⁷Rutgers University, New Brunswick, New Jersey 08903
⁸University of Rochester, Rochester, New York 14627
⁹Lawrence Berkeley National Laboratory, Berkeley, California 94720
¹⁰University of Oslo, Oslo, Norway