Structure and symmetries of odd-odd triaxial nuclei

Review
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Part of the following topical collections:
  1. Exotic phenomena at the interface of nuclear and particle physics

Abstract.

Rotational spectra of odd-odd Rh and Ag isotopes are investigated with the primary motivation to search for the spontaneous chiral symmetry breaking phenomenon in these nuclei. The experimental results obtained on the degenerate dipole bands of some of these isotopes using a large array of gamma detectors are discussed and studied using the triaxial projected shell (TPSM) approach. It is shown that, first of all, to reproduce the odd-even staggering of the known yrast bands of these nuclei, large triaxial deformation is needed. This large triaxial deformation also gives rise to doublet band structures in many of these studied nuclei. The observed doublet bands in these isotopes are shown to be reproduced reasonably well by the TPSM calculations. Further, the TPSM calculations for neutron-rich nuclei indicate that the ideal manifestation of the chirality can be realised in 106Rh and 112Ag , where the doublet bands have similar electromagnetic properties along with small differences in excitation energies.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Department of Nuclear and Atomic PhysicsTata Institute of Fundamental ResearchColaba, MumbaiIndia
  2. 2.Department of PhysicsUniversity of KashmirSrinagarIndia
  3. 3.Department of PhysicsGovt. Degree College KulgamKulgamIndia
  4. 4.Cluster University of SrinagarSrinagarIndia

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