Abstract
We report on the first experimental study of quadrupole collectivity in the very neutron-rich nuclei using intermediate-energy Coulomb excitation. These nuclei are located along the path from doubly magic Ca to collective S and Si isotopes, a critical region of shell evolution and structural change. The deduced transition strengths are confronted with large-scale shell-model calculations in the sdpf shell using the state-of-the-art SDPF-Uand EPQQM effective interactions. The comparison between experiment and theory indicates that a shell-model description of Ar isotopes around remains a challenge.
- Received 27 February 2012
DOI:https://doi.org/10.1103/PhysRevLett.108.182501
© 2012 American Physical Society
Viewpoint
A Walk Along the Dripline
Published 30 April 2012
Measurements of radioactive, neutron-rich isotopes of argon are paving the way for experiments at new facilities that will explore the neutron dripline.
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