https://doi.org/10.1051/epjconf/20136201003
Onset of collectivity in neutron-rich Sr and Kr isotopes: Prompt spectroscopy after Coulomb excitation at REX-ISOLDE, CERN
1 GANIL, CEA/DSM-CNRS/IN2P3, 14076 Caen Cedex 05, France
2 Department of Physics, University of Oslo, 0316 Oslo, Norway
3 Institute of Nuclear Physics, University of Cologne, 50397 Cologne, Germany
4 Instituut voor Kern-en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
5 Oliver Lodge Laboratory, University of LIverpool, Liverpool, L69 7ZE, UK
6 Physics Department, University of Lund, Box 118, 221 00 Lund, Sweden
7 CSNSM, CNRS/IN2P3, 91400 Orsay, France
8 Heavy Ion Laboratory, Warsaw University, 02097 Warsaw, Poland
9 CEA Saclay, IRFU, SPhN, 91191 Gif-sur-Yvette, France
10 PH Department, CERN 1211, Geneva 23, Switzerland
11 Department of Physics, University of York, York, UK
12 Physik Department E12, Technische Universität München, 85748 Garching, Germany
13 Department of Physics, University of Manchester, Manchester, UK
14 Fakultät für Physik, Ludwig-Maximilians-Universität München, Garching, Germany
15 Institut für Kernphysik, Technische Universität Darmstadt, Darmastadt, Germany
a e-mail: clement@ganil.fr
Published online: 13 December 2013
A rapid onset of quadrupole deformation is known to occur around the neutron number 60 in the neutron-rich Zr and Sr isotopes. This shape change has made the neutron-rich A = 100 region an active area of experimental and theoretical studies for many decades now. We report in this contribution new experimental results in the neutron rich 96,98Sr investigated by safe Coulomb excitation of radioactive beams at the REX-ISOLDE facility, CERN. Reduced transition probabilities and spectroscopic quadrupole moments have been extracted from the differential Coulomb excitation cross section supporting the scenario of shape coexistence/change at N = 60. Future perspectives are presented including the recent experimental campaign performed at ILL-Grenoble.
© Owned by the authors, published by EDP Sciences, 2013
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