Abstract

19F experimental abundances is overestimated in respect to the theoretical one: it is therefore clear that further investigations are needed. We focused on the 19F(α, p) 22 Ne reaction, representing the main destruction channel in He-rich environments. The lowest energy at which this reaction has been studied with direct methods is E C.M. ≈ 0.91 MeV, while the Gamow region is between 0.39 ÷ 0.8 MeV, far below the Coulomb barrier (3.8 MeV). For this reason, an experiment at Rudjer Boskovic Institute (Zagreb) was performed, applying the Trojan Horse Method. Following this method we selected the quasi-free contribution coming from 6Li(19 F,p22 Ne)2 H at Ebeam=6 MeV at kinematically favourable angles, and the cross section at energies 0 < EC.M. < 1.4 MeV was extracted in arbitrary units, covering the astrophysical region of interest.

Details

Title
First evidences for 19F(α, p)22Ne at astrophysical energies
Author
G D’Agata 1 ; Spitaleri, C 1 ; Pizzone, R G 2 ; Blagus, S 3 ; Figuera, P 2 ; Grassi, L 4 ; Guardo, G L 1 ; Gulino, M 5 ; Hayakawa, S 6 ; Indelicato, I 1 ; Kshetri, R 7 ; La Cognata, M 2 ; Lamia, L 4 ; Lattuada, M 1 ; Mijatović, T 3 ; Milin, M 3 ; Miljanic, D 3 ; Prepolec, L 3 ; Sergi, M L 2 ; Skukan, N 3 ; Soic, N 3 ; Tokic, V 3 ; Tumino, A 5 ; Uroic, M 3 

 INFN-LNS, Via Santa Sofia, 62, 95123 Catania CT, Italy; Dipartimento di Fisica e Astronomia, Università degli Studi di Catania, Via Santa Sofia, 64, 95123 Catania CT, Italy 
 INFN-LNS, Via Santa Sofia, 62, 95123 Catania CT, Italy 
 Rudjer Boskovic Institut, Bijenika cesta, 54, 10000, Zagreb, Croatia 
 Dipartimento di Fisica e Astronomia, Università degli Studi di Catania, Via Santa Sofia, 64, 95123 Catania CT, Italy 
 INFN-LNS, Via Santa Sofia, 62, 95123 Catania CT, Italy; Kore University, Viale delle Olimpiadi, 1, 94100 Enna EN, Italy 
 RIKEN, CNS, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
 Department of Physics, Sidho-Kanho-Birsha University, Purulia- 723104, WB, India 
Publication year
2016
Publication date
Apr 2016
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2575085095
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.