Low-Lying Dipole Excitations in the Deformed Even-Even Isotopes 154-160Gd
Abstract
Properties of the low-energy electromagnetic dipole states in even-even 154-160Gd isotopes have been studied within rotational, transitional and Galilean invariant Quasiparticle Random Phase approximation (QRPA) method. It has been shown that the main part of spin-1 states, observed at energy 2 div 4 MeV in 154-160Gd may have M1 character and may be interpreted as the main fragments of the scissors mode. The calculations indicate the presence of a few prominent negative parity Kpi = 1- states in 2 div 4 MeV energy interval in 154-160Gd.
- Publication:
-
Acta Physica Polonica B
- Pub Date:
- March 2009
- Bibcode:
- 2009AcPPB..40..653G