https://doi.org/10.1140/epja/i2017-12267-8
Regular Article - Theoretical Physics
Signature inversion in 
band of 152Eu and 154,156Tb
1
Department of Physics, Akal University, 151302, Talwandi Sabo, India
2
Department of Physics, Maharishi Markandeshwar University, 133 207, Mullana, India
* e-mail: sushil.rathi179@gmail.com
Received:
15
January
2017
Accepted:
30
March
2017
Published online:
26
April
2017
The phenomenon of signature inversion observed in the 
band of 152Eu and 156Tb nuclides is revisited through the axially symmetric two quasiparticle plus rotor model approach. The magnitude of experimentally observed signature splitting and point of signature inversion, which could not be explicitly reproduced in the earlier calculations, is successfully reproduced in the present study. Some of the critical issues, such as violation of the well-established Gallagher Moszkowski (GM) rule for eight GM doublets appearing in the basis space of earlier calculations of 152Eu and 156Tb , are fixed and also the ambiguity regarding spin assignment to this band observed in 156Tb is resolved. These calculations are further extended to the same band () observed in 154Tb nuclide and signature inversion observed in this band is successfully reproduced.
© SIF, Springer-Verlag Berlin Heidelberg, 2017
