Description of the Structural Properties of Low-Lying States in 102Ru with IBM2

Abstract

We describe the properties of low-lying states of 102Ru within the framework of the proton-neutron interacting model IBM2. The theoretical predictions of the ground state, quasi-γ and quasi-β bands, and the ratios of the B(E2) transition strengths are reproduced very well. The structural properties of 102Ru are identified in the parameters space of the interacting boson model (IBM2). The characteristic feature of the energy spectrum structure exhibits that 102Ru is very close to the critical point of Uπv(5)—Oπv(6) transition and towards Uπv(5) symmetry. The key sensitive quantities of the B(E2) branching ratio clearly indicate that 102Ru is a primary Oπv (6) symmetry, while with a somewhat Uπv (5) symmetry. It is possible that the shape coexistence persists in 102Ru, whereas the evident fingerprint of the shape coexistence has not been observed.