Abstract
The 7 Be(p , γ) 8 B reaction is investigated through a microscopic three-cluster model, using the generator coordinate method. The 7 Be nucleus is described by an α + 3 He structure, projected on the 3 2 − and 1 2 − states of 7 Be. The model is tested by the calculation of M1 transition probabilities in 8 Li and 8 B and of the 7 Li(n , γ) 8 Li cross section. At zero energy, we find an S -factor S (0) = 0.030 keV·b, slightly larger than the currently accepted value.
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