Electron capture on iron group nuclei
Nuclear Theory
2008-11-26 v1
Abstract
We present Gamow-Teller strength distributions from shell model Monte Carlo studies of fp-shell nuclei that may play an important role in the pre-collapse evolution of supernovae. We then use these strength distributions to calculate the electron-capture cross sections and rates in the zero-momentum transfer limit. We also discuss the thermal behavior of the cross sections. We find large differences in these cross sections and rates when compared to the naive single-particle estimates. These differences need to be taken into account for improved modeling of the early stages of type II supernova evolution.
Cite
@article{arxiv.nucl-th/9801012,
title = {Electron capture on iron group nuclei},
author = {D. J. Dean and K. Langanke and L. Chatterjee and P. B. Radha and M. R. Strayer},
journal= {arXiv preprint arXiv:nucl-th/9801012},
year = {2008}
}