Maxwellian-averaged cross sections and astrophysical reaction rates from ENDF/B-VII.0, JEFF-3.1, JENDL-3.3 and ENDF/B-VI.8 evaluated nuclear reaction data libraries

ORAL

Abstract

Maxwellian-averaged cross sections and astrophysical reaction rates were calculated for (n,$\gamma )$, (n,p), (n,f), (n,$\alpha )$, (n,2n) and (n, t+2$\alpha )$ reactions from ENDF/B-VII.0, JEFF-3.1, JENDL-3.3 and ENDF/B-VI.8 evaluated nuclear reaction data libraries. Four major nuclear reaction libraries were processed under the same conditions for temperatures (kT) range from 1 keV to 1 MeV. Present results provide a set of independent benchmarks and complimentary nuclear data sets for the KADONIS nuclear astrophysics database that is currently under development. Current calculation of s-process nucleosynthesis nuclei is compared with previous data sets. Possible physics implications and differences between data sets are discussed.

Authors

  • Boris Pritychenko

    National Nuclear Data Center, Brookhaven National Laboratory

  • Alejandro A. Sonzogni

    National Nuclear Data Center, Brookhaven National Laboratory

  • Said F. Mughabghab

    National Nuclear Data Center, Brookhaven National Laboratory