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The α+20Ne cluster structure of 24Mg in a microscopic three-cluster model

par Descouvemont, Pierre ;Baye, Daniel Jean
Référence Nuclear physics. A, 475, 2, page (219-232)
Publication Publié, 1987

Article révisé par les pairs

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Résumé :

With the generator-coordinate method, the 24Mg spectrum is studied microscopically in a three-cluster model involving an 16O core and two α-particles. The wave functions are projected out on the 0+ and 2+ internal states of 20Ne and on the total angular momentum and parity. We discuss the band structure of24Mg and suggest the existence of an α + 20Ne molecular band starting at 10.7 MeV. The α + 20Ne(0+, 2+) collision matrices are calculated with the microscopic R-matrix method. Reduced E2 transition probabilities in the 24Mg spectrum are presented and compared with experiment. Finally, the 20Ne(α, γ)24Mg capture reaction is discussed. © 1987.