Sep 4 – 9, 2022
Europe/Zurich timezone

The ASTRAL database for neutron-capture nucleosynthesis studies

Sep 6, 2022, 6:00 PM
61/1-201 - Pas perdus - Not a meeting room - (CERN)

61/1-201 - Pas perdus - Not a meeting room -


Show room on map


Dr Diego Vescovi (Goethe University Frankfurt)


Present nuclear reaction network computations for astrophysical simulations involve many different types of rates, including neutron-capture reactions of interest for the modeling of heavy-element nucleosynthesis. While for many of them we still have to rely on theoretical calculations, an increasing number of experimentally-determined cross sections have now become available. In this contribution, we present the "ASTrophysical Rate and rAw data Library" (ASTRAL), a new online database for neutron-capture cross sections based on experimental results, mainly obtained through activation and time-of-flight measurements. For the evaluation process, cross sections were re-calculated starting from raw data and by considering recent changes in physical properties of the involved isotopes (e.g., half-life and γ-ray intensities). We show the current status of the database, the techniques adopted to derive the recommended maxwellian-averaged cross sections, and future developments.

Primary authors

Dr Diego Vescovi (Goethe University Frankfurt) Rene Reifarth (Goethe University Frankfurt (DE))

Presentation materials