Abstract
Ultraprecise energies and absolute values associated with excitations in measured with the GRID technique, reveal significant information relating to the possible existence or absence of two-phonon vibrational excitations in deformed nuclei. A strong is observed but reflects band mixing rather than a mode. For the band, measurement of precise transition energies shows that suggested existing placements of strong deexcitation transitions are incorrect and that there is, again, no evidence for -phonon character in this band either. A weak value is interpreted in terms of the microscopic structure of and excitations.
- Received 13 November 1998
DOI:https://doi.org/10.1103/PhysRevC.59.2432
©1999 American Physical Society