Abstract
We report on the first spectroscopy study of the very neutron-rich nucleus using the direct two-proton knockout reaction at . The energy of the first excited state of , , was measured. The magnitude of the partial cross sections to the ground state and the state is indicative of strong intruder admixtures in the lowest-lying states as suggested by Monte Carlo shell-model calculations.
- Received 12 February 2007
DOI:https://doi.org/10.1103/PhysRevLett.99.072502
©2007 American Physical Society