Speaker
Tobias Beck
Description
The Coriolis interaction is known to induce perturbations to a Hamiltonian which is diagonal in projection quantum numbers $K$. Precision values for the branching ratios between the scissors mode and the $2^+_1$ state of $^{164}$Dy unveil such a scenario in first order. Employing a two-state mixing calculation, the $K$-mixing matrix element along with first information on $\Delta K = 0$ $M1$ excitation strength is obtained. While the latter is about two orders of magnitude smaller than usual collective $\Delta K = 1$ $M1$ strengths, the associated mixing matrix element is twice as large as the one obtained from the second-order effect which admixes ground and $\gamma$ bands.
Author
Tobias Beck
Co-authors
Volker Werner
(IKP, TU Darmstadt)
Rostislav Jolos
(Joint Institute for Nuclear Research, Dubna)
N. Pietralla
(IKP, TU Darmstadt)
