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- Title
Rigid Triaxial Model for Depopulation of I = 3 Gamma Vibrational Band.
- Authors
Varshney, A. K.; Prasad, Rajendra; Tyagi, R. K.; Gupta, K. K.; Varshney, V. P.; Gupta, D. K.
- Abstract
The Davydov-Filippov Model has been employed to evaluate the 8(E2) branching ratios 3+ → 2+ / 4+, 3+ → 2+ / 4+, 3+ → 2+ / 2+′ y 3+ → 4+ / 2+′ depopulating I=3 gamma vibrational band of the even-even deformed nuclei In medium and heavy mass region. The results are compared with the known experimental values. An excellent fit within a factor of two has been obtained for nuclei having non-axiality parameter (γ) in the range 140 < 7 < 28°. It supports the adiabatic approximation at the energy values more than 1 MeV and favours the rigid shape of the nucleus with mean values of shape parameters β and γ. It also establishes Kπ = 2, I = 3 level as a member of classical gamma vibrational band originating from collective excitations and. therefore, goes against the view point of Zawiacha et al, who doubted the vibrational nature of even deformed nuclei.
- Subjects
BRANCHING ratios; CELL nuclei; APPROXIMATION theory; COLLECTIVE excitations; NUCLEAR physics
- Publication
Nucleus, 1987, Issue 2, p1
- ISSN
0864-084X
- Publication type
Article