Comparison of the LUNA³He(α, γ)⁷Be activation results with earlier measurements and model calculations

Abstract

Abstract. Recently, the LUNA collaboration has carried out a high precision measurement on the 3 He(α, γ) 7 Be reaction cross section with both activation and online γ-detection methods at unprecedented low energies. In this paper the results obtained with the activation method are summarized. The results are compared with previous activation experiments and the zero energy extrapolated astrophysical S factor is determined using different theoretical models.