$p$-Process simulations with a modified reaction library

TL;DR

This paper presents $p$-process nucleosynthesis simulations using updated stellar reaction cross sections, revealing that lower cross sections in heavy seed nuclei reduce overproduction factors in supernova models.

Contribution

It introduces new $p$-process simulation results incorporating the latest reaction library data, highlighting the impact of updated cross sections on nucleosynthesis predictions.

Findings

Lower cross sections in Bi and Pb nuclei decrease overproduction factors.

Updated reaction data affects $p$-process abundance predictions.

Simulations with new data show differences from previous results.

Abstract

We have performed $p$-process simulations with the most recent stellar $(n,\gamma)$ cross sections from the "Karlsruhe Astrophysical Database of Nucleosynthesis in Stars" project (version v0.2, http://nuclear-astrophysics.fzk.de/kadonis). The simulations were carried out with a parametrized supernova type II shock front model (``$\gamma$ process'') of a 25 solar mass star and compared to recently published results. A decrease in the normalized overproduction factor could be attributed to lower cross sections of a significant fraction of seed nuclei located in the Bi and Pb region around the $N$=126 shell closure.