Transverse wobbling in an even-even nucleus

Abstract

Two new bands built on the two-quasiparticle $\pi (h_{11/2}{)}^2$ configuration of the even-even nucleus ${}^{130}$Ba are investigated using constrained triaxial covariant density functional theory combined with quantum particle rotor model calculations. The energy difference between the two bands, as well as the available electromagnetic transition probabilities $B(M1{)}_{\text{out}}/B(E2{)}_{\text{in}}$ and $B(E2{)}_{\text{out}}/B(E2{)}_{\mathrm{in}}$, are well reproduced. The analysis of the angular momentum geometry reveals that the higher band represents transverse wobbling motion of a two-quasiparticle configuration. This is the first example of two-quasiparticle wobbling bands in an even-even nucleus.

5 pages, 4 figures

References in corpus (6)

• New parametrization for the nuclear covariant energy density functional with point-coupling interaction
• Transverse Wobbling in ${}^{135}$Pr
• Experimental Evidence for Transverse Wobbling in ${}^{105}$Pd
• Chiral geometry in symmetry restored states: Chiral doublet bands in 128Cs
• Diversity of shapes and rotations in the gamma-soft 130Ba nucleus: first observation of a t-band in the A=130 mass region
• Wobbling geometry in simple triaxial rotor

Cited by in corpus (1)

• Two quasiparticle wobbling in the even-even nucleus 130Ba