Weak Interaction Processes in Core-Collapse Supernovae
Supernova simulations to date have assumed that during core collapse electron captures (EC) occur dominantly on free protons, while captures on heavy nuclei are Pauli-blocked and are ignored. Using microscopic calculations we show that the EC rates on heavy nuclei are large enough that, in contrast to previous assumptions, electron capture on nuclei dominates over capture on free protons. This leads to significant changes in core collapse simulations.
KeywordsElectron Capture Heavy Nucleus Free Proton Core Collapse Electron Chemical Potential
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