The F-19(alpha, p)Ne-22 and Na-23(p, alpha)Ne-20 reaction in AGB nucleosynthesis via THM

0495716 - ÚJF 2019 RIV FR eng C - Conference Paper (international conference)
D'Agata, G. - Pizzone, R. G. - La Cognata, M. - Indelicato, I. - Spitaleri, C. - Burjan, Václav - Cherubini, S. - Di Pietro, A. - Guardo, G. L. - Gulino, M. - La Commara, M. - Lamia, L. - Lattuada, M. - Mazzocco, M. - Mrázek, Jaromír - Milin, M. - Palmerini, S. - Parascandolo, C. - Pierroutsakou, D. - Rapisarda, G. G. - Romano, S. - Sergi, M. L. - Soic, N. - Sparta, R. - Trippella, O. - Tumino, A.
The F-19(alpha, p)Ne-22 and Na-23(p, alpha)Ne-20 reaction in AGB nucleosynthesis via THM.
EPJ Web of Conferences. Vol. 184. Les Ulis: EDP Science, 2018, č. článku 02003. ISSN 2101-6275.
[9th European Summer School on Experimental Nuclear Astrophysics. Santa Tecla (IT), 17.09.2017-24.09.2017]
R&D Projects: GA MŠMT(CZ) EF16_013/0001679; GA MŠMT LM2015076
Institutional support: RVO:61389005
Keywords : 19-F * Trojan Horse Method * three-body reactions
OECD category: Astronomy (including astrophysics,space science)

In AGB environment, fluorine and sodium abundances are still matter of debate. About 19F (only stable isotope of fluorine), its abundance in the universe is strictly related to standard and extra-mixing processes taking place inside AGB-stars, that are considered to be the most important sites for its production. Nevertheless the way in which it is destroyed is far from being well understood. On the other hand, 23Na presence in Globular Clusters, along with is well-known anticorrelation with oxygen has made clear that this element must be produced in previous generations stars, and intermediatemass AGB stars are one of the possible candidates for its production. For this reason we studied the 19F(α,p)22Ne and 23Na(p,α)20Ne reactions in the energy range of relevance for astrophysics via the Trojan Horse Method (THM), using the three-body reactions 6Li(19F, p22Ne)d and 23Na(d, pn)20Ne.
Permanent Link: http://hdl.handle.net/11104/0288646