The neutron deficient rare-earth nuclei of the A similar to 130 region are of particular interest since highly deformed prolate ground states are expected. Indeed these nuclei are predicted to show maximal ground-state deformations of beta(2) similar to 0.40 (axis ratio of 3:2), comparable to the deformation deduced for superdeformed cerium isotopes at high spin. A fusion-evaporation experiment was performed with radioactive ion beams at GANIL in October 2004 which had the goal to reach very proton-rich exotic nuclei located near the proton drip-line. A radioactive Kr-76 beam, delivered by the SPIRAL facility, was used to bombard a thin Ni-58 target. Emitted gamma-rays were detected by the EXOGAM gamma-ray spectrometer which was, for the first time, coupled with both the DIAMANT charged-particle array and the VAMOS spectrometer.

Probing the maximally deformed light rare-earth region around the drip-line nucleus 130Sm

LA RANA, GIOVANNI;MORO, RENATA EMILIA MARIA;VARDACI, EMANUELE;
2006

Abstract

The neutron deficient rare-earth nuclei of the A similar to 130 region are of particular interest since highly deformed prolate ground states are expected. Indeed these nuclei are predicted to show maximal ground-state deformations of beta(2) similar to 0.40 (axis ratio of 3:2), comparable to the deformation deduced for superdeformed cerium isotopes at high spin. A fusion-evaporation experiment was performed with radioactive ion beams at GANIL in October 2004 which had the goal to reach very proton-rich exotic nuclei located near the proton drip-line. A radioactive Kr-76 beam, delivered by the SPIRAL facility, was used to bombard a thin Ni-58 target. Emitted gamma-rays were detected by the EXOGAM gamma-ray spectrometer which was, for the first time, coupled with both the DIAMANT charged-particle array and the VAMOS spectrometer.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/304538
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