The ¹⁹F(p, α_1,2) reaction studied via Trojan Horse Method in astrophysical range of interest

¹ INFN Sezione di Perugia, 06123 Perugia, Italy
² Ruđer Bošković Institute, 10000 Zagreb, Croatia
³ Faculty of Science, University of Split, 21000 Split, Croatia
⁴ Department of Physics and Astronomy “Galileo Galilei”, University of Padova, 35121 Padova, Italy
⁵ Beihang University, 100191 Beijing, China
⁶ INFN Laboratori Nazionali del Sud, 95123 Catania, Italy
⁷ Department of Physics and Astronomy “Ettore Majorana”, University of Catania, 95123 Catania, Italy
⁸ INFN Sezione di Padova, 35121 Padova, Italy
⁹ Department of Physics and Geology, University of Perugia, 06123 Perugia, Italy
¹⁰ Faculty of Engineering and Arhitecture, Kore University of Enna, 94100 Enna, Italy
¹¹ Center for Nuclear Study, University of Tokyo, 351-0198 Wako, Saitama, Japan

^* e-mail: nvukman@pmfst.hr

Published online: 28 October 2024

Abstract

The complex reaction network connected to the ¹⁹F stellar abundance is very sensitive to the physical condition in stars. To overcome difficulties present in the direct measurements, mainly the very low cross section in the astrophysical energy range due to the Coulomb repulsion, an indirect measurement of the ¹⁹F(p, α) reaction, with the Trojan Horse Method (THM), was performed at INFN-LNS. While the method had been successfully used to study α₀ channel, in the present analysis focus was given to the α_1,2 channels, where better knowledge of the reaction rates at low energies is required, obtainable by employing the THM method.