Abstract
Excited states in the extremely neutron-deficient nucleus have been identified for the first time using the JUROGAM II array in conjunction with the RITU recoil separator at the Accelerator Laboratory of the University of Jyväskylä. This study lies at the limit of what is presently achievable with in-beam spectroscopy, with an estimated cross section of only 10 nb for the (,) reaction. A continuation of the trend observed in and is seen, where the prolate minimum continues to rise beyond the midshell with respect to the spherical ground state. Beyond-mean-field calculations are in reasonable correspondence with the trends deduced from experiment.
- Received 1 March 2010
DOI:https://doi.org/10.1103/PhysRevC.82.011303
©2010 American Physical Society
Synopsis
The limits of a closed shell
Published 26 July 2010
In highly neutron deficient isotopes of lead, the normally stabilizing effects of a closed proton shell break down.
See more in Physics