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[Formula Presented]-matrix analysis of interference effects in [Formula Presented] and [Formula Presented]

par Angulo Perez, Carmen ;Descouvemont, Pierre
Référence Physical review. C. Nuclear physics, 61, 6, page (7)
Publication Publié, 2000

Article révisé par les pairs

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Résumé :

The [Formula Presented] phase shift and the [Formula Presented] [Formula Presented] factor are analyzed in the [Formula Presented]-matrix theory. A new method is proposed to link experimental and calculated parameters within the [Formula Presented]-matrix formalism. We show that interference patterns in the phase shift near 3 MeV are very helpful to constrain the parameter set. Starting from this analysis, we fit the [Formula Presented] [Formula Presented] factor, and find low-energy values larger than currently accepted. Different interference patterns are found, but do not appear to affect the astrophysical energies. Consequently, direct measurements at low energies are necessary for astrophysical applications. © 2000 The American Physical Society.