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HK: Fachverband Physik der Hadronen und Kerne

HK 16: Nuclear Astrophysics II

HK 16.5: Vortrag

Dienstag, 17. März 2026, 17:45–18:00, PHIL A 602

Low energy resonances in the ¹⁵N(α,γ)¹⁹F-reaction — •Peter Hempel^1,2, Daniel Bemmerer¹, Axel Boeltzig¹, Eliana Masha¹, Felix Mayer^1,2, Konrad Schmidt¹, Simon Vincent^2,3, Anup Yadav^1,2, and Kai Zuber² — ¹Helmholtz-Zentrum Dresden-Rossendorf (HZDR) — ²TU Dresden — ³Deutsches Zentrum für Astrophysik (DZA)

The ¹⁵N(α,γ)¹⁹F-reaction contributes to fluorine production in several astrophysical sites including AGB stars, type II supernovae, and Wolf Rayet stars. The reaction occurs during the helium burning phase. However, the reaction rate at astrophysical energies is still poorly known. Here we report on data from a measurement of astrophysically relevant resonances in the 0.5 - 1.1 MeV center of mass energy range. The experiment has been carried out at the Felsenkeller 5 MV shallow-underground accelerator in Dresden using tantalum nitride solid targets enriched in ¹⁵N and the new FeliciTAS 4π BGO γ-ray calorimeter.