Improvement of the high-accuracyO17(p,α)N14reaction-rate measureme

First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance

“…The THM wasdiscussed for the first time in Baur (1986) andSpitaleri (1991. It has been successfully applied to several fundamental astrophysical problems, such as primordial nucleosynthesis (Rinollo et al 2005;Pizzone et al 2014;Tumino et al 2014;Li et al 2015), thelithium problem (Pizzone et al 2005b;Lamia et al 2012Lamia et al , 2013, light elementdepletion (Spitaleri et al 2014;Lamia et al 2015), AGB stars (La Cognata et al 2009;Palmerini et al 2013), and novanucleosynthesis (Sergi et al 2015). Recently, the method has proven suitable for measurements involving radioactive ion beams (Cherubini et al 2015;Pizzone et al 2016) and neutrons (Gulino et al 2013), thus proving its wide applicability.…”

Direct and Indirect Measurements for a Better Understanding of the Primordial Nucleosynthesis

“…The THM allows us to cover a wide energy range using only one beam energy (see for instance, Sergi et al, 2015;Cvetinović et al, 2018;Rapisarda et al, 2018). For this reason, the THM is used not only in contexts where light elements are present, as in the case of BBN scenario, but also for studying heavier species interaction, like 12 C + 12 C (Tumino et al, 2018), which are fundamental for stellar physics.…”

Indirect Measurements of n- and p-Induced Reactions of Astrophysical Interest on Oxygen Isotopes

“…The direct measurements of low-lying resonance strengths such as of the 65 keV peak are, in fact, very difficult because of the Coulomb barrier. Therefore, large uncertainties are present in the available direct data (see Sergi et al, 2015 for more details). In 2006, we therefore started a campaign of measurements to investigate the contribution of the 65 keV resonance to the reaction rate of the 17 O(p,α) 14 N by using the indirect THM.…”