Conveners
Session 3
- Wolfram Korten
The Collinear Resonance Ionization Spectroscopy (CRIS) apparatus at ISOLDE-CERN [1] provides a powerful tool to perform highly-efficient and precise hyperfine structure measurements on isotopes produced at rates lower than 100 ions/s [2]. Such measurements allow the extraction of observables that are key for our understanding of the nuclear many-body problem: nuclear ground-state spins,...
HIE-ISOLDE experiments have been focused on two experimental setups in 2017, with the Miniball HPGe array [2] taking most of the beam time alongside experiments at the third beam line. The ISOLDE Solenoidal Spectrometer (ISS) [3] is currently being commissioned on the second beam line with the aim of performing few-nucleon transfer reactions in the magnetic field of a former MRI magnet. As...
Shell evolution in the vicinity of $^{68}$Ni has recently attracted many theoretical and experimental investigations. By now it has been clearly established that the presumed subshell closure at N=40 is not very pronounced. While the intruder character of the $1g_{9/2}$ and $2d_{5/2}$ neutron orbital induces collectivity by pair excitations from the $fp$ shell into the $g_{9/2}$ orbital, the...
Nickel isotopes $^{58-68,70}$Ni were measured using collinear laser spectroscopy at the COLLAPS setup at CERN-ISOLDE. Nickel has magic proton number 28, the first magic number that is caused by the spin-orbit interaction and the isotope chain is state-of-the-art in nuclear structure research. One of these is the sub-shell closure at N=40, which has been intensively studied by various...
This work pertains to determining the spectroscopic quadrupole moment for the first 2+ state in 66Ge using “safe” Coulomb excitation measurements. Motivation to study 66Ge arises from the anomalous rotational behaviour of the high-lying first 2+ state observed in even-even isotopes in the A ~ 70 region [1]. Low-lying 0+ excited states have been suggested for even-even neutron-deficient nuclei...
