High spin states in the 191Tl nucleus have been populated via the 159Tb (36S,4n) reaction at 165 MeV. Two weakly populated rotational bands have been observed with properties (energy spacings and dynamic moments of inertia) very similar to those of other superdeformed bands in the A∼190 region. The two bands can be interpreted as signature partners which exhibit some signature splitting for rotational frequencies ħω≥0.2 MeV. They are interpreted within the framework of cranked Woods-Saxon calculations as being based on the proton i13/2(Ω=5/2) intruder orbital, in agreement with pairs of superdeformed bands seen in neighboring odd Tl nuclei.
Superdeformed bands in Tl191
SORAMEL, FRANCESCA;
1994
Abstract
High spin states in the 191Tl nucleus have been populated via the 159Tb (36S,4n) reaction at 165 MeV. Two weakly populated rotational bands have been observed with properties (energy spacings and dynamic moments of inertia) very similar to those of other superdeformed bands in the A∼190 region. The two bands can be interpreted as signature partners which exhibit some signature splitting for rotational frequencies ħω≥0.2 MeV. They are interpreted within the framework of cranked Woods-Saxon calculations as being based on the proton i13/2(Ω=5/2) intruder orbital, in agreement with pairs of superdeformed bands seen in neighboring odd Tl nuclei.
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