The isovector dipole strength in nuclei with extreme neutron excess
Nuclear Theory
2008-12-11 v1
Abstract
The E1 strength is systematically analyzed in very neutron-rich Sn nuclei, beyond Sn until Sn, within the Relativistic Quasiparticle Random Phase Approximation. The great neutron excess favors the appearance of a deformed ground state for Sn. The evolution of the low-lying strength in deformed nuclei is determined by the interplay of two factors, isospin asymmetry and deformation: while greater neutron excess increases the total low-lying strength, deformation hinders and spreads it. Very neutron rich deformed nuclei may not be as good candidates as stable spherical nuclei like Sn for the experimental study of low-lying E1 strength.
Keywords
Cite
@article{arxiv.0812.1952,
title = {The isovector dipole strength in nuclei with extreme neutron excess},
author = {Daniel Pena Arteaga and E. Khan and Peter Ring},
journal= {arXiv preprint arXiv:0812.1952},
year = {2008}
}