Abstract : The coexistence of prolate and oblate shapes in light selenium and krypton isotopes has been investigated using the complementary techniques of low-energy Coulomb excitation with radioactive ions beams and lifetime measurements of excited states after fusion-evaporation reactions. The resulting B(E2) values and spectroscopic quadrupole moments represent a sensitive test for configuration mixing calculations going beyond the mean-field approach. The onset of collectivity for neutron-rich nuclei near 68Ni has been investigated using a new technique to measure lifetimes with the recoil distance Doppler shift method after multi-nucleon transfer reactions
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Submitted on : Tuesday, November 2, 2010 - 10:35:27 AM Last modification on : Wednesday, November 18, 2020 - 5:12:06 PM
A. Gôrgen, J. Ljungvall. Evolution of shapes and collectivity in exotic nuclei. International Symposium on Exotic Nuclei (EXON), Sep 2009, Sochi, Russia. pp.54-63, ⟨10.1063/1.3431469⟩. ⟨in2p3-00531219⟩