Quadrupole moments and identical superdeformed bands in {sup 149}Tb
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695 (United States)
- I.Re.S, IN2P3, Universite Louis Pasteur, Strasbourg 67037 (France)
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, Califonia 94720 (United States)
- Soltan Institute for Nuclear Studies, 05-400 Swierk (Poland)
- Department of Physics, Panjab University, Chandigarh 160 014 (India)
Five superdeformed (SD) bands have been observed in {sup 149}Tb, using the Gammasphere spectrometer. The measurement was performed with a backed target to obtain lifetime information from a Doppler-shift attenuation method analysis. It is proposed that the yrast SD band corresponds to the {sup 148}Gd(yrast){circle_times}{pi}6{sup 3} intruder configuration. The first excited band (band 2) is found to be identical to the {sup 150}Tb yrast SD band. Band 3 is proposed to correspond to the {pi}[301]1/2({alpha}={minus}1/2){r_arrow}[651]3/2({alpha}={minus}1/2) proton-hole excitation coupled to the {pi}6{sup 4}{nu}7{sup 1}({nu}[651]1/2){sup {minus}1} intruder configuration. Bands 4 and 5, the weakest SD bands seen in the present work, show similarities with band 3 and are most likely associated with a similar intruder configuration. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 641679
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 58; ISSN PRVCAN; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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