The bare astrophysical S(E) factor of the ^7Li(p,alpha)alpha reaction (CROSBI ID 93311)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lattuada, M. ; Pizzone, R.G. ; Typel, S. ; Figuera, P. ; Miljanić, Đuro ; Musumarra, A. ; Pellegriti, M.G. ; Rolfs, C. ; Spitaleri, C. ; Wolter H.H.
engleski
The bare astrophysical S(E) factor of the ^7Li(p,alpha)alpha reaction
The astrophysically important 7Li(p,alpha)alpha reaction has been studied via the Trojan horse method in the energy range E = 10400 keV. A new theoretical description, based on the distorted-wave Born approximation approach, allows one to extract information on the bare astrophysical S-factor, S_b(E), with S_b(0) = 55 ą 3 keV barns. The results are compared with direct experimental data leading to a model-independent value of the electron screening potential energy, U_e = 330 ą 40 eV, much higher than the adiabatic limit U_ad = 175 eV.
nuclear reactions; nucleosynthesis; abundances
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