Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-10-21
Phys.Rev. C69 (2004) 034325; Erratum-ibid. C69 (2004) 049901
Physics
Nuclear Physics
Nuclear Theory
22 pages, 10 figures, to appear in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.69.049901
The wobbling motion excited on triaxial superdeformed nuclei is studied in terms of the cranked shell model plus random phase approximation. Firstly, by calculating at a low rotational frequency the \gamma-dependence of the three moments of inertia associated with the wobbling motion, the mechanism of the appearance of the wobbling motion in positive-\gamma nuclei is clarified theoretically -- the rotational alignment of the \pi i_{13/2} quasiparticle(s) is the essential condition. This indicates that the wobbling motion is a collective motion that is sensitive to the single-particle alignment. Secondly, we prove that the observed unexpected rotational-frequency dependence of the wobbling frequency is an outcome of the rotational-frequency dependent dynamical moments of inertia.
Matsuyanagi Kenichi
Matsuzaki Masayuki
Shimizu Yoshifumi R.
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