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New limits for the Ne-19(p,gamma)Na-20 astrophysical reaction rate from direct measurements using radioactive beams

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Michotte, C. Bain, CR. Binon, F. Coszach, R. Davinson, T. Delbar, Thierry [UCL] Leleux, Pierre [UCL] Lipnik, Peter [UCL] Ninane, Alain [UCL] Vervier, Jean [UCL] Woods, PJ.

Inexplosive stellar hydrogen burning, the hot CNO cycles and the rp-process are mainly linked by the reaction sequence O-15(alpha,gamma) Ne-19(p,gamma)Na-20. Using intense Ne-19 radioactive beams, both the Ne-19(p,gamma) and the Ne-19(d,n) reaction have been studied. Upper and lower limits for the Ne-19(p,gamma) reaction rate have been deduced, allowing to conclude that the O-15(alpha,gamma) reaction is most likely the bottleneck reaction.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 1996
Language Anglais
Journal information "Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics" - Vol. 381, no. 4, p. 402-406 (1996)
Peer reviewed yes
Publisher Elsevier Science Bv (Amsterdam)
issn 0370-2693
e-issn 1873-2445
Publication status Publié
Affiliation UCL - SC/PHYS - Département de physique
Keywords radiative capture ; radioactive beams ; nucleosynthesis
Links
Bibliographic reference Michotte, C. ; Bain, CR. ; Binon, F. ; Coszach, R. ; Davinson, T. ; et. al. New limits for the Ne-19(p,gamma)Na-20 astrophysical reaction rate from direct measurements using radioactive beams. In: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 381, no. 4, p. 402-406 (1996)
Permanent URL http://hdl.handle.net/2078.1/47028