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First evidences for 19F(α, p)22Ne at astrophysical energies


D’Agata, G.; Pizzone, R.G.; Spitaleri, C.; Blagus, Saša; Figuera, P.; Grassi, L.; Guardo, G.L.; Gulino, M.; Hayakawa, S.; Indelicato, I. et al.
First evidences for 19F(α, p)22Ne at astrophysical energies // Journal of physics. Conference series, 703 (2016), 012016, 6 doi:10.1088/1742-6596/703/1/012016 (međunarodna recenzija, članak, znanstveni)


Naslov
First evidences for 19F(α, p)22Ne at astrophysical energies

Autori
D’Agata, G. ; Pizzone, R.G. ; Spitaleri, C. ; Blagus, Saša ; Figuera, P. ; Grassi, L. ; Guardo, G.L. ; Gulino, M. ; Hayakawa, S. ; Indelicato, I. ; Kshetri, R. ; La Cognata, M. ; Lamia, L. ; Lattuada, M. ; Mijatović, Tea ; Milin, Matko ; Miljanić, Đuro ; Prepolec, Lovro ; Sergi, M.L. ; Skukan, Natko ; Soić, Neven ; Tokić, Vedrana ; Tumino, A. ; Uroić, Milivoj

Izvornik
Journal of physics. Conference series (1742-6588) 703 (2016); 012016, 6

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Trojan Horse Method, 19F experimental abundances

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Rad je prezentiran na skupu 8th European Summer School on Experimental Nuclear Astrophysics, održanom od 13.-20.09.2015.g., Sicilija, Italija.



POVEZANOST RADA


Projekt / tema
098-1191005-2890 - Eksperimentalno istraživanje atomske jezgre: struktura i reakcije (Suzana Szilner, )
HRZZ-IP-2013-11-7194 - Nuklearna struktura i reakcije: eksperimentima prema neutronskoj liniji kapanja (Suzana Szilner, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Scopus


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