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

✍ Scribed by M. Dufour; P. Descouvemont

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 169 KB
• Volume: 672
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(00)00054-3

✦ Synopsis

We investigate the 15 N(α, γ ) 19 F and 15 O(α, γ ) 19 Ne reactions by using a multicluster description of 15 N and 15 O. The 15 N(α, γ ) 19 F and 15 O(α, γ ) 19 Ne wave functions are defined in the Generator Coordinate Method, using α and triton (or 3 He) 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 15 N(α, γ ) 19 F and 15 O(α, γ ) 19 Ne capture cross sections is discussed.