Absolute cross section of the3He(α,γ)7Be reaction |
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Authors: | M Hilgemeier H W Becker C Rolfs H P Trautvetter J W Hammer |
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Institution: | 1. Institut für Kernphysik, Universit?t Münster, Münster, Germany 2. Institut für Strahlenphysik, Universit?t Stuttgart, Stuttgart, Germany
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Abstract: | The absolute cross section σ(E) of the3He(α, γ)7Be reaction has been measured fromE c.m. =195 to 686 keV. The studies employed both a supersonic jet gas target and an extended gas target, and were carried out by the observation of the prompt capture γ-ray transitions as well as the7Be residual nuclei. The absolute cross sections deduced from the capture γ-rays are in good agreement with most previous work and remove a discrepancy with other earlier work. In comparison, the σ(E) values obtained from the7Be residual nuclei are systematically higher, suggesting a small production of additional7Be by contaminant reactions. |
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