English

Neutron-induced cross sections -- from raw data to astrophysical rates

Instrumentation and Methods for Astrophysics 2019-03-05 v1 Nuclear Experiment

Abstract

Neutron capture cross sections are one of the most important nuclear inputs to models of stellar nucleosynthesis of the elements heavier than iron. The activation technique and the time-of-flight method are mostly used to determine the required data experimentally. Recent developments of experimental techniques allow for new experiments on radioactive isotopes. Monte-Carlo based analysis methods give new insights into the systematic uncertainties of previous measurements. We present an overview over the state-of-the-art experimental techniques, a detailed new evaluation of the 197^{197}Au(n,γ\gamma) cross section in the keV-regime and the corresponding re-evaluation of 63 more isotopes, which have been measured in the past relative to the gold cross section.

Keywords

Cite

@article{arxiv.1902.09838,
  title  = {Neutron-induced cross sections -- from raw data to astrophysical rates},
  author = {René Reifarth and Philipp Erbacher and Stefan Fiebiger and Kathrin Göbel and Tanja Heftrich and Michael Heil and Franz Käppeler and Nadine Klapper and Deniz Kurtulgil and Christoph Langer and Claudia Lederer-Woods and Alberto Mengoni and Benedikt Thomas and Stefan Schmidt and Mario Weigand and Michael Wiescher},
  journal= {arXiv preprint arXiv:1902.09838},
  year   = {2019}
}

Comments

34 pages, 83 figs