Abstract
The transitional rates between the double giant dipole resonance (DGDR) states and giant dipole resonance (GDR) ones are studied using the wave functions, which include one-, two-, and many-phonon components. It is shown that there is a possibility for the enhancement of the transition rates from the DGDR states to the GDR ones as compared to the harmonic limit. This enhancement arises from the matrix elements for the transitions between many-phonon terms of the wave functions, which differ by one phonon.
- Received 14 February 1997
DOI:https://doi.org/10.1103/PhysRevC.56.R603
©1997 American Physical Society