Following nuclei through nucleosynthesis: a novel tracing technique

Abstract

Astrophysical nucleosynthesis is a family of diverse processes by which atomic nuclei undergo nuclear reactions and decays to form new nuclei. The complex nature of nucleosynthesis, which can involve as many as tens of thousands of interactions between thousands of nuclei, makes it difficult to study any one of these interactions in isolation using standard approaches. In this work, we present a new technique, nucleosynthesis tracing, that we use to quantify the specific role of individual nuclear reaction, decay, and fission processes in relationship to nucleosynthesis as a whole. We apply this technique to study fission and ${\beta }^{-}$-decay as they occur in the rapid neutron capture ($r$) process of nucleosynthesis.

arXiv comment18 pages, 10 figures

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• Nucleosynthesis and observation of the heaviest elements
• Actinide opacities for modeling the spectra and light curves of kilonovae
• First application of mass measurement with the Rare-RI Ring reveals the solar r-process abundance trend at A=122 and A=123
• r-Process Radioisotopes from Near-Earth Supernovae and Kilonovae
• Collective neutrino oscillations and heavy-element nucleosynthesis in supernovae: exploring potential effects of many-body neutrino correlations
• Nucleosynthesis in Outflows from Black Hole-Neutron Star Merger Disks With Full GR$\nu$RMHD
• Isochronic evolution and the radioactive decay of r-process nuclei
• Angle-dependent in-situ fast flavor transformations in post-neutron star merger disks
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• Exploration for Astromers near ${}^{132}$Sn with the Canadian Penning Trap