Abstract
Radiative strength functions (RSFs) for the nuclei below the separation energy are obtained from the and reactions, respectively. An enhancement of more than a factor of 10 over common theoretical models of the soft () RSF for transitions in the quasicontinuum (several MeV above the yrast line) is observed. Two-step cascade intensities with soft primary transitions from the reaction confirm the enhancement.
- Received 26 April 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.142504
©2004 American Physical Society