Speaker
Jasna Papuga
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Description
Laser spectroscopy was performed on bunched beams of K (Z = 19) isotopes at the COLLAPS beam-line at ISOLDE-CERN. Nuclear spins, magnetic moments and mean square charge radii were deduced for 48,49,50,51K providing information about the nuclear structure beyond N = 28. In order to be able to measure the most exotic isotope (N = 32), a highly-efficient light collection region was developed and installed on the beam line.
The ground state spin and magnetic moments are sensitive to the configuration of the wave function, thus being a good probe to study the evolution of the proton single-particle configuration as neutrons are filling the p3/2 orbit. The results will be compared to Shell Model calculations using different effective interactions. The evolution of the 1/2 and 3/2 energy levels from N = 16 up to N = 32 will be discussed as well.
The change in the mean square charge radii along an isotopic chain is a good observable to probe the presence of a closed shell. Charge radii between N = 18 and N = 32 will be presented, covering two major shell closures and one subshell closure.
Primary author
Jasna Papuga
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Co-authors
Deyan T. Yordanov
(Max-Planck-Institute für Kernphysik, D-69117 Heidelberg, Germany)
Gerda Neyens
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Hanne Heylen
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Kim Kreim
(Max-Planck-Institute für Kernphysik, D-69117 Heidelberg, Germany)
Klaus Blaum
(Max-Planck-Institute für Kernphysik, D-69117 Heidelberg, Germany)
Magdalena Kowalska
(Physics Department, CERN, CH-1211 Geneva 23, Switzerland)
Marieke De Rydt
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Mark L. Bissell
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Mustafa M. Rajabali
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Rainer Neugart
(Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany)
Rodolfo Sanchez
(GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany)
Ronald F. Garcia Ruiz
(Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium)
Wilfried Nörtershäuser
(Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany; Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany)
