Decay and properties of the yrast superdeformed band in [Formula Presented]Pb

D. P. McNabb, J. A. Cizewski, K. Y. Ding, N. Fotiades, D. E. Archer, J. A. Becker, L. A. Bernstein, K. Hauschild, W. Younes, R. M. Clark, P. Fallon, I. Y. Lee, A. O. Macchiavelli, R. W. MacLeod

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39 Scopus citations


The [Formula Presented]Yb[Formula Presented]Mg,[Formula Presented] reaction at [Formula Presented][Formula Presented]Mg) = 134.5 MeV with a gold-backed target was used to populate high-angular momentum states in [Formula Presented]Pb. Resulting [Formula Presented] rays were detected with Gammasphere located at the 88-Inch Cyclotron. A discrete transition of energy [Formula Presented] = 2057.7(6) keV has been identified in the depopulation the yrast superdeformed (SD) band in [Formula Presented]Pb. This transition has been tentatively placed in the level scheme based on coincidence relationships. Thus, the excitation energy of the SD level populated by the 262-keV in-band transition is tentatively assigned [Formula Presented] = 4.572(1) MeV. Confidence limits are discussed. Other transitions in coincidence with the SD band and general features of the band and its decay are also presented. In particular, we confirm that the [Formula Presented] of the SD band decreases by [Formula Presented] at the lowest frequency. Also, by comparing the masses of the SD ground states in [Formula Presented]Pb to liquid drop model expectations and to each other we have been able to confirm enhanced stability for [Formula Presented] at superdeformation.

Original languageEnglish (US)
Pages (from-to)2474-2483
Number of pages10
JournalPhysical Review C - Nuclear Physics
Issue number5
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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