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Electron capture on iron group nuclei

D. J. Dean·K. Langanke·L. Chatterjee·P. B. Radha·M. R. Strayer
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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.

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D. J. Dean, K. Langanke, L. Chatterjee, P. B. Radha, M. R. Strayer. 1998-01-08. Electron capture on iron group nuclei. https://doi.org/10.1103/physrevc.58.536

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