Identification of a superdeformed band in {sup 84}Zr
- Oak Ridge National Lab., TN (United States); and others
Theoretical predictions of the existence of superdeformed (SD) shapes in the A = 80 region have recently been confirmed experimentally. Here the authors report the identification of a SD band in {sup 84}Zr, which further supports the predicted N = 44 SD shell gap. States in {sup 84}Zr were populated by the {sup 58}Ni({sup 29}Si,2pn) reaction with a beam energy of 128 MeV. The experimental setup consisted of the Gammasphere Early Implementation and the {open_quotes}Microball{close_quotes} array. Using proper particle and {gamma} gating, the authors have identified a band of nine correlated {gamma} rays in {sup 84}Zr with energies ranging from 1526 to 2761 keV and energy differences about 150 keV. The moment of inertia of this band ({approx} 27{Dirac_h}{sup 2}/MeV) fits well with a superdeformed shape of {beta}{sub 2} {approx} 0.5. An investigation of the lifetimes of the transitions in the band by the Doppler attenuation method in a thin target gives a quadrupole moment of {approximately} 5 eb and strongly supports the SD nature of this band.
- OSTI ID:
- 374929
- Report Number(s):
- CONF-9304297--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 40; ISSN 0003-0503; ISSN BAPSA6
- Country of Publication:
- United States
- Language:
- English
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