Speaker
Sabine Bönig
(Technische Universität Darmstadt)
Description
The cadmium isotopic chain with a proton number of Z=48 is one of the most interesting in nuclear structure physics due to the proximity to the proton shell closure at Z=50. Performed Coulomb excitation experiments on 122-126Cd exhibit high excitation strengths for the 0_gs^+→2_1^+ transition. Shell model calculations are not able to reproduce the experimentally found values although the shell closure is near. However, Beyond-Mean-Field calculations agree with the experimental results, taking a prolate deformation into account. In this contribution, the latest results on the investigation of the B(E2,0^+→2_1^+) value of 128Cd via Coulomb excitation with MINIBALL at REX-ISOLDE will be presented. We will discuss the experimentally found transition strength considering a non-vanishing quadrupole moment and place it in the overall picture of the behaviour of the B(E2,0^+→2_1^+) values of this isotopic chain. Additionally the status of the analysis on the recently performed Coulomb excitation experiment of 123Cd will be presented. These results will give an insight into the onset of collectivity in neutron-rich Cadmium isotopes.
This project is supported by BMBF (No. 06 DA 9036I and No. 06 DA 7040), HIC for FAIR and EU through ENSAR (No. 262010).
Primary author
Sabine Bönig
(Technische Universität Darmstadt)
Co-authors
Anna-Lena Hartig
(Technische Universität Darmstadt)
Christopher Bauer
(Technische Universitaet Darmstadt (DE))
Marcus Scheck
(TU Darmstadt)
Michael Thürauf
(Technische Universität Darmstadt)
Stoyanka Ilieva
(Technische Universität Darmstadt)
Thorsten Kroell
(Technische Universitaet Darmstadt (DE))
