SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 40: Nuclear Astrophysics IV

HK 40.1: Gruppenbericht

Mittwoch, 22. März 2023, 15:45–16:15, SCH/A419

Nuclear astrophysics deep underground at LUNA and LUNA-MV — •Eliana Masha, Daniel Bemmerer, and Axel Boeltzig for the LUNA collaboration — Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01328 Dresden, Germany

A precise knowledge of the cross sections of astrophysically relevant nuclear reactions is needed for understanding energy generation inside stars and the creation of the chemical elements. In stars, nuclear reactions take place at energies well below the repulsive Coulomb barrier. Hence, their cross-sections are often too small to be measured in laboratories at the Earth's surface, where the signal would be lost in the cosmic-ray-induced background. An efficient way to reduce the cosmic-ray-induced background is to perform experiments in underground laboratories. The Laboratory for Underground Nuclear Astrophysics (LUNA) is located deep underground at Gran Sasso National Laboratories (Italy). The reduced background achieved at LUNA allows to measure the nuclear cross sections directly at the relevant astrophysical energies. The presentation will give an overview of the recent results achieved at LUNA, and future perspectives on the LUNA experiment, including the new 3.5 MV LUNA-MV accelerator.