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Author Smith, A. G. ♦ Durell, J. L. ♦ Phillips, W. R. ♦ Jones, M. A. ♦ Leddy, M. ♦ Urban, W. ♦ Varley, B. J. ♦ Ahmad, I. ♦ Morss, L. R. ♦ Bentaleb, M. ♦ Guessous, A. ♦ Lubkiewicz, E. ♦ Schulz, N. ♦ Wyss, R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ MOLYBDENUM ISOTOPES ♦ NEUTRON-RICH ISOTOPES ♦ DEFORMATION ♦ CURIUM 248 ♦ SPONTANEOUS FISSION ♦ SPIN ♦ DOPPLER BROADENING ♦ ROTATIONAL STATES ♦ EXCITED STATES ♦ LIFETIME ♦ YRAST STATES ♦ STRONTIUM ♦ ZIRCONIUM ♦ FISSION FRAGMENTS
Abstract The Eurogam-2 array has been used to study {gamma} rays emitted following the spontaneous fission of a {sup 248}Cm 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 {ital 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. {copyright} {ital 1996 The American Physical Society.}
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-08-01
Publisher Department Argonne National Laboratory (ANL), Argonne, IL
Publisher Place United States
Journal Physical Review Letters
Volume Number 77
Issue Number 9
Organization Argonne National Laboratory (ANL), Argonne, IL


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