2 N ov 2 00 7 Rotation - driven prolate - to - oblate shape phase transition in 190 W : A projected shell model study ⋆
نویسندگان
چکیده
A shape phase transition is demonstrated to occur in W by applying the Projected Shell Model, which goes beyond the usual mean-field approximation. Rotation alignment of neutrons in the high-j, i13/2 orbital drives the yrast sequence of the system, changing suddenly from prolate to oblate shape at angular momentum 10~. We propose observables to test the picture.
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