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The 15N (α,γ)19 F and 15O (α,γ)19 Ne reactions in a microscopic multicluster model

par Dufour, Marianne ;Descouvemont, Pierre
Référence Nuclear physics. A, 672, 1-4, page (153-164)
Publication Publié, 2000

Article révisé par les pairs

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Résumé :

We investigate the 15N(α,γ)19F and 15O(α,γ)19Ne reactions by using a multicluster description of 15N and 15O. The 15N(α,γ)19F and 15O(α,γ)19Ne wave functions are defined in the Generator Coordinate Method, using α and triton (or 3He) wave functions. The band structure and the E2 transition probabilities are well reproduced by the model, but some resonances, important for astrophysics, are missing. The non-resonant part of the 15N(α,γ)19F and 15O(α,γ)19Ne capture cross sections is discussed. © 2000 Elsevier Science B.V.