| Numéro |
J. Phys. Colloques
Volume 48, Numéro C2, Juin 1987
International Workshop on Semiclassical and Phase Space Approaches to the Dynamics of the Nucleus
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|---|---|---|
| Page(s) | C2-59 - C2-63 | |
| DOI | https://doi.org/10.1051/jphyscol:1987209 | |
J. Phys. Colloques 48 (1987) C2-59-C2-63
DOI: 10.1051/jphyscol:1987209
STRUCTURE OF THE GIANT ANGLE DIPOLE
R.R. HILTON1, S. IWASAKI1, H.J. MANG1, P. RING1 et M. FABER21 Physics Department, Technical University Munich, D-8046 Garching, F.R.G.
2 Institute of Nuclear Physics, Technical University, A-1020 Wien, Austria
Abstract
An extensive investigation of the angular analogue to the Giant Dipole, the "Giant Angle Dipole", undertaken within the framework of a self-consistent QRPA formalism employing Skyrme forces, has revealed a number of facets, about this state. In the case of 156Gd, the QRPA solutions obtained showed fragmentation of the B(M1) strength occurs without the need to postulate triaxiallity or octupole deformations. Overlaps unambiguously reveal the dominant component of the fragmented state found at 3.41 Mev, having BM(1)=1.49µN2 with little spin flip contribution, to be a contra angular rotational oscillation of the proton and neutron densities, together with isovector plus isoscaler admixture of two orthogonal shears, in agreement with the oscillator model. The implications of this state as a tool in nuclear structure physics are discussed.