A pillar of nuclear astrophysics is the study of nuclear reactions that drive the chemical evolution of the Universe. This requires precise knowledge of the nuclear reaction cross sections. Underground accelerator laboratories provide unique environments for high-sensitivity studies of such reactions, thanks to their shielding from rock overburden. In recent years, several new underground accelerators have taken up operation for nuclear astrophysics studies, offering new experimental capabilities underground.
In the seminar I will introduce advantages and challenges of radiative capture measurements in underground laboratories, present an overview of current facilities, and discuss a recent study of radiative capture on carbon with the LUNA-400 [1] and Felsenkeller [2] accelerators.
[1] Phys. Rev. Lett. 131, 162701 (2023) – arXiv:2308.16098
[2] Phys. Rev. C 107, L062801 (2023) – arXiv:2306.09022
https://gsi-fair.zoom.us/j/63856816325
Meeting-ID: 638 5681 6325
Passcode: AP_Seminar
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Alexandre Gumberidze - Department Atomic, Quantum & Fundamental Physics