Multiphonon and ``hot''-phonon Isovector Electric-Dipole Excitations
Nuclear Theory
2009-10-31 v1
Abstract
We argue that a substantial increase in the cross section for Coulomb excitation in the region of the Double Giant Dipole Resonance should be expected from Coulomb excitation of excited states involved in the spreading of the one-phonon resonance, in a manifestation of the Brink-Axel phenomenon. This generates an additional fluctuating amplitude and a corresponding new term to be added incoherently to the usual cross-section. The appropriate extension of an applicable reaction calculation is considered in order to estimate this effect.
Keywords
Cite
@article{arxiv.nucl-th/9808039,
title = {Multiphonon and ``hot''-phonon Isovector Electric-Dipole Excitations},
author = {B. V. Carlson and L. F. Canto and S. Cruz-Barrios and M. S. Hussein and A. F. R. de Toledo Piza},
journal= {arXiv preprint arXiv:nucl-th/9808039},
year = {2009}
}
Comments
6 pages, Latex, 1 figure available on request