太阳能下的~ 3 He（α，γ）~ 7 Be S因子：LUNA的瞬发γ实验
The 3He(alpha,gamma)7Be S-factor at solar energies: the prompt gamma experiment at LUNA
摘要：
~ 3 He（α，γ）~ 7 Be过程是大爆炸核合成和恒星中氢燃烧p-p链的关键反应。在INFN Gran Sasso地下实验室用活化法和瞬发γ探测法测量了~ 3 He（α，γ）~ 7 Be的截面。目前的工作报告的全部细节的提示伽马探测实验，重点是系统的不确定性的测定。最后的数据，包括在LUNA的活化测量，与上一代实验的结果进行比较，并使用两种不同的理论模型来获得在太阳能的S因子。
英文摘要：
The 3He(alpha,gamma)7Be process is a key reaction in both Big-Bang nucleosynthesis and p-p chain of Hydrogen Burning in Stars. A new measurement of the 3He(alpha,gamma)7Be cross section has been performed at the INFN Gran Sasso underground laboratory by both the activation and the prompt gamma detection methods. The present work reports full details of the prompt gamma detection experiment, focusing on the determination of the systematic uncertainty. The final data, including activation measurements at LUNA, are compared with the results of the last generation experiments and two different theoretical models are used to obtain the S-factor at solar energies.
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