Recent results on the gamma-ray spectroscopy of the neutron-rich nucleus 67Co, populated through multi-nucleon transfer reactions by bombarding a 238U target with a 460 MeV 70Zn beam at the Legnaro National Laboratory, are presented. The development of deformation in Co isotopes approaching the N=40 subshell closure is discussed within the shell model framework in a very large model space. These calculations are able to describe with good accuracy the excited states observed in 67Co, at the edge of the island of inversion at N=40, where a low lying highly deformed band coexists with a spherical structure. © 2012 American Institute of Physics.
Shape coexistence far from stability
LENZI, SILVIA MONICA;RECCHIA, FRANCESCO
2012
Abstract
Recent results on the gamma-ray spectroscopy of the neutron-rich nucleus 67Co, populated through multi-nucleon transfer reactions by bombarding a 238U target with a 460 MeV 70Zn beam at the Legnaro National Laboratory, are presented. The development of deformation in Co isotopes approaching the N=40 subshell closure is discussed within the shell model framework in a very large model space. These calculations are able to describe with good accuracy the excited states observed in 67Co, at the edge of the island of inversion at N=40, where a low lying highly deformed band coexists with a spherical structure. © 2012 American Institute of Physics.
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