Speaker
N. Bree
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
Description
We report on a Coulomb excitation experiment at `safe' energies on the even-even neutron-deficient 184,186,188Hg isotopes at the REX-ISOLDE radioactive beam facility. For the first time a Coulomb excitation experiment using post-accelerated radioactive ion beams was performed in the heavy mass region. Apart from the first 2+ to the 0+ ground state transition, also Coulex towards the second 2+ and the 4+ state was observed and gamma-rays from the different decay paths were detected in the Miniball gamma-spectrometer. From the intensity of these gamma-rays the matrix elements connecting the different states in the different bands will be deduced for these nuclei. The obtained results should lead to a better understanding of the shape coexistence in this mass region of the nuclear chart.
Authors
Co-authors
A. Larsen
(Department of Physics, University of Oslo, Blindern, N-0316 Oslo, Norway)
B. Butler
(Oliver Lodge Laboratory, University of Liverpool, United Kingdom)
D. Jenkins
(Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom)
D. Voulot
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
E. ClÉment
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
E. Piselli
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
F. Wenander
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
I. Stefanescu
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
J. CederkÄll
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
J. Pakarinen
(Oliver Lodge Laboratory, University of Liverpool, United Kingdom)
J. Van de Walle
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
K. Hadynska
(Heavy Ion Laboratory, Warsaw University, Pasteura 5A, 02-093 Warsaw, Poland)
L. Fraile
(ISOLDE, CERN, CH-1211 Geneva 23, Switzerland)
M. Guttormsen
(Department of Physics, University of Oslo, Blindern, N-0316 Oslo, Norway)
M. Huyse
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
M. Scheck
(Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA)
M. Zielinska
(DAPNIA, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France)
N. Patronis
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
P. Marley
(Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom)
P. Napiorkowski
(Heavy Ion Laboratory, Warsaw University, Pasteura 5A, 02-093 Warsaw, Poland)
P. Peura
(Oliver Lodge Laboratory, University of Liverpool, United Kingdom)
P. Van Duppen
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
R. Herzberg
(Oliver Lodge Laboratory, University of Liverpool, United Kingdom)
R. Julin
(Department of Physics, University of Jyväskylä, SF-40100 Jyväskylä, Finland)
R. KrÜcken
(Technische Universität München, James-Franck-Str., D-85748 Garching, Germany)
S. Knapen
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
S. Siem
(Department of Physics, University of Oslo, Blindern, N-0316 Oslo, Norway)
T. Cocolios
(Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium)
T. Grahn
(Oliver Lodge Laboratory, University of Liverpool, United Kingdom)
Th. Kroell
(Technische Universität München, James-Franck-Str., D-85748 Garching, Germany)
