Speaker
Dr
D. T. Yordanov
(Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)
Description
We report on the first hyperfine-structure study of cadmium by high-resolution laser spectroscopy. The goal is to determine nuclear spins, electromagnetic moments and root mean square charge radii of ground and isomeric states along the chain, ultimately reaching the neutron 50 and 82 shell closures. In the first part of the program we studied the intense beams of 106-124,26Cd by fluorescence spectroscopy, which also covered the b-decaying isomers in the odd 111-123Cd. The measurements determined the ground-state spins as being 1/2, 3/2, and 5/2 in close relation with the corresponding single-particle orbitals. Evidence is found whether the isomeric configuration is 11/2- in all isotopes. The data is sensitive to the changes in the degree of collectivity between the ground states and the isomers, not only from their quadrupole moments, but also through their charge radii. This enable a discussion in therms of shape coexistence. In this contribution we will present the preliminary results and their interpretation.
Primary author
Dr
D. T. Yordanov
(Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)
Co-authors
B. Cheal
(School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UK)
D. L. Balabanski
(INRNE, Bulgarian Academy of Science, BG-1784 Sofia, Bulgaria)
G. Georgiev
(CSNSM-IN2P3-CNRS, Université de Paris Sud, F-91405 Orsay, France)
G. Neyens
(Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium)
H. H. Stroke
(Department of Physics, New York University, New York, NY 10003, USA)
J. Papuga
(Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium)
K Flanagan
(School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UK)
K. Blaum
(Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)
M. L. Bissell
(Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium)
M. Rajabali
(Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium)
N. Frömmgen
(Institut für Kernchemie, Universität Mainz, D-55099 Mainz, Germany)
R. Neugart
(Institut für Kernchemie, Universität Mainz, D-55099 Mainz, Germany)
R. Sánchez
(Institut für Kernchemie, Universität Mainz, D-55099 Mainz, Germany)
W. Nörtershäuser
(Institut für Kernchemie, Universität Mainz, D-55099 Mainz, Germany)
