Speaker
Hanne Heylen
(KU Leuven (BE))
Description
The region below $^{68}$Ni ($Z=28$, $N=40$) is characterized by a rapid shell structure evolution. In the neutron-rich Mn ($Z=25$) isotopes, this results in an interesting interplay between single-particle and collective behavior. The $^{51,53-64}$Mn ground states as well as the $^{58,60,62}$Mn isomeric states are studied via bunched beam collinear laser spectroscopy at ISOLDE. The measured hyperfine spectra allow for a model-independent extraction of the nuclear structure information. Firm spin assignments are made which is indispensable for constructing reliable level schemes in this mass region. In addition, the $g$-factors are determined so precisely that even small deviations from the trend can be observed. These deviations provide important information to understand the changing structure towards $N=40$.
Primary author
Hanne Heylen
(KU Leuven (BE))
Co-authors
Bradley Cheal
(University of Liverpool (GB))
Carla Babcock
(CERN)
Christopher Geppert
(Gesellschaft fuer Schwerionen forschung mbH (GSI))
Deyan Yordanov
(Max-Planck-Gesellschaft (DE))
Gerda Neyens
(KU Leuven)
Iain Moore
(University of Jyväskylä)
Jasna Papuga
(KU Leuven (BE))
Jonathan Billowes
(University of Manchester (GB))
Kim Kreim
(Max-Planck-Gesellschaft (DE))
Klaus Blaum
(Max-Planck-Gesellschaft (DE))
Mark Bissell
(KU Leuven (BE))
Rainer Neugart
(Johannes-Gutenberg-Universitaet Mainz)
Ronald Fernando Garcia Ruiz
(KU Leuven (BE))
Wilfried Noertershaeuser
(TU Darmstadt)
Wouter Gins
(KU Leuven)
