Neutron-induced cross sections From raw data to astrophysical rates

• Published in: European physical journal plus Vol. 133; no. 10
• Main Authors: Reifarth, René, Erbacher, Philipp, Fiebiger, Stefan, Göbel, Kathrin, Heftrich, Tanja, Heil, Michael, Käppeler, Franz, Klapper, Nadine, Kurtulgil, Deniz, Langer, Christoph, Lederer-Woods, Claudia, Mengoni, Alberto, Thomas, Benedikt, Schmidt, Stefan, Weigand, Mario, Wiescher, Michael
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-10-2018
• Subjects: Applied and Technical Physics; Atomic; Complex Systems; Condensed Matter Physics; Focus Point on Rewriting Nuclear Physics Textbooks: Basic Nuclear Interactions and Their Link to Nuclear Processes in the Cosmos and on Earth; Mathematical and Computational Physics; Molecular; Optical and Plasma Physics; Physics; Physics and Astronomy; Review; Theoretical
• ISSN: 2190-5444; 2190-5444
• DOI: 10.1140/epjp/i2018-12295-3

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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
Au(n,
) 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.