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

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 ${}^{197}$Au(n,$\gamma$) 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.

arXiv comment34 pages, 83 figs

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Cited by in corpus (11)

• Astronuclear Physics: a Tale of the Atomic Nuclei in the Skies
• The activation method for cross section measurements in nuclear astrophysics
• The s Process and Beyond
• The Status and Future of Direct Nuclear Reaction Measurements for Stellar Burning
• Slow Neutron-Capture Process: Low-mass AGB stars and presolar silicon carbide grains
• Capitalizing on Nuclear Data Libraries' Comprehensiveness to Obtain Solar System r-process Abundances
• Production of Quasi-Stellar Neutron Field at Explosive Stellar Temperatures
• Impact of $\text{T}$- and $\rho$-dependent decay rates and new (n,$\gamma$) cross sections on the $\text{s}$ process in low-mass AGB stars
• Experiments towards a neutron target for measurements in inverse kinematics
• Study of fusion reactions of light nuclei at low energies using complex nucleon-nucleus potential function
• Investigation of neutron-induced reaction at the Goethe University Frankfurt