Partial dynamical symmetry as a selection criterion for many-body interactions

A. Leviatan (1) , J. E. Garcia-Ramos (2) , P. van Isacker (3)

1 Racah Institute of Physics
2 Department of Applied Physics [Huelva]
3 Théorie

We propose the use of partial dynamical symmetry (PDS) as a selection criterion for higher-order terms in situations when a prescribed symmetry is obeyed by some states and is strongly broken in others. The procedure is demonstrated in a first systematic classification of many-body interactions with SU(3) PDS that can improve the description of deformed nuclei. As an example, the triaxial features of the nucleus 156Gd are analyzed.

Domaines: Physique Nucléaire Théorique [nucl-th]

A. Leviatan, J. E. Garcia-Ramos, P. van Isacker. Partial dynamical symmetry as a selection criterion for many-body interactions. Physical Review C, 2013, 87, pp.021302. ⟨10.1103/PhysRevC.87.021302⟩. ⟨in2p3-00789942⟩