Speaker
Francois Didierjean
(Université de strasbourg, CNRS, IPHC UMR 7871, F-67000 Strasbourg, France)
Description
In the case of N=50 isotopes from 90Zr to 78Ni, the first 0+, 2+ and 4+ states are based on proton excitations inside the fp shell. The proton excitation to the g9/2 orbital conducts to negative spin states. However, the 5+, 6+ and 7+ states correspond mainly to neutron excitations across the N=50 gap. Thus, the evolution of the excitation energy of these states (partially known in 82Ge and unknown in 80Zn) as a function of Z, allows to deduce the N=50 gap in 78Ni.
A set of neutron-rich nuclei is produced in a fusion-fission reaction with 238U beam on 9Be target. The several fission fragments are selected by the VAMOS++ spectrometer. The prompt gamma rays are measured in coincidence with the fission fragments by the AGATA array composed of 8 triple-clusters.
Preliminary results on neutron-rich Ge isotopes will be presented.
Primary author
Francois Didierjean
(Université de strasbourg, CNRS, IPHC UMR 7871, F-67000 Strasbourg, France)
Co-authors
Alahari Navin
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Alain Astier
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Amel Korichi
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Andrea Gottardo
(IPN, IN2P3/CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France)
Andres Gadeo
(Instituto de Fisica Corpuscular, CSIC-Universitat de Valencia, E-46980 Valencia, Spain)
Antoine Lemasson
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Benedicte Millon
(INFN Sezione di Milano, I-20133 Milano, Italy)
Bertrand Jacquot
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Caterina Michelagnoli
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Cesar Lizarazo
(Institut fur Kernphysik, Technische Universitat Darmstadt, D-64289 Darmstadt, Germany)
Christelle Schmitt
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Clement Delafosse
(IPN, IN2P3/CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France)
Corina Andreoiu
(Department of Chemisty, Simon Fraser University, Burnaby, British Columbia, Canada)
Costel Petrache
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Damian Ralet
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Daniel Napoli
(INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy)
David Verney
(IPN, IN2P3/CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France)
Dora Sohler
(Institute for Nuclear Research of the Hungarian Academy of Sciences, Pf.51, H-4001 Debrecen, Hungary)
Emmanuel Clement
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Francois le Blanc
(IPN, IN2P3/CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France)
Giacomo de Angelis
(INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy)
Gilbert Duchêne
(Université de strasbourg, CNRS, IPHC UMR 7871, F-67000 Strasbourg, France)
Gilles de France
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Guangshun Li
(GSI, Helmholtzzentrum fur Schwerionenforschung, D-64291 Darmstadt, Germany)
Guillaume Macquart
(Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France)
Isabelle Deloncle
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Istvan Kuti
(Institute for Nuclear Research of the Hungarian Academy of Sciences, Pf.51, H-4001 Debrecen, Hungary)
Jeremie Dudouet
(Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France)
Mauricy Rejmund
(GANIL, CEA/DRF-CNRS/IN2P3, BP55027, F-14076 Caen cedex 5, France)
Mourad Ramdhane
(LPSC, Université Grenoble-Alpes, CNRS/IN2P3, F-38026 Grenoble, France)
Norbert Pietralla
(Institut fur Kernphysik, Technische Universitat Darmstadt, D-64289 Darmstadt, Germany)
Olivier Stezowski
(Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622 Villeurbanne, France)
Pete Jones
(iThemba LABS, National Research Foundation, P.O.Boz 722,Somerset West, 7129 South Africa)
Radomira Lozeva
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Rosa Perez-Vidal
(Instituto de Fisica Corpuscular, CSIC-Universitat de Valencia, E-46980 Valencia, Spain)
Silvia Lenzi
(INFN Sezione di Padova, I-35131 Padova, Italy)
Theodoros Konstantinopoulos
(CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France)
Zsolt Dombradi
(Institute for Nuclear Research of the Hungarian Academy of Sciences, Pf.51, H-4001 Debrecen, Hungary)
