New Stellar $(n,{\hat{I}}^3)$ Cross Sections and The "Karlsruhe Astrophysical Database of Nucleosynthesis in Stars"

Abstract

Since April 2005 a regularly updated stellar neutron cross section compilation is available online at http://nuclear-astrophysics.fzk.de/kadonis. This online-database is called the "Karlsruhe Astrophysical Database of Nucleosynthesis in Stars" project and is based on the previous Bao et al. compilation from the year 2000. The present version \textsc{KADoNiS} v0.2 (January 2007) includes recommended cross sections for 280 isotopes between ${}^1$H and ${}^{210}$Po and 75 semi-empirical estimates for isotopes without experimental information. Concerning stellar $(n,{\hat{I}}^3)$ cross sections of the 32 stable, proton-rich isotopes produced by the $p$ process experimental information is only available for 20 isotopes, but 9 of them have rather large uncertainties of $\ge$9%. The first part of a systematic study of stellar $(n,{\hat{I}}^3)$ cross sections of the $p$-process isotopes ${}^{74}$Se, ${}^{84}$Sr, ${}^{102}$Pd, ${}^{120}$Te, ${}^{130}$Ba, ${}^{132}$Ba, ${}^{156}$Dy, and ${}^{174}$Hf is presented. In another application \textsc{KADoNiS} v0.2 was used for an modification of a reaction library of Basel university. With this modified library $p$-process network calculations were carried out and compared to previous results.

Proceedings "International Conference on Nuclear Data for Science and Technology 2007", Nice/ France