Transfer Reactions As a Tool in Nuclear Astrophysics

Frontiers in Physics

Faïrouz Hammache¹  Nicolas de Séréville² 

[1] [e-mail];null;

关键词: transfer reactions;    angular distributions;    distorted wave born approximation;    spectroscopic factors;    nuclear astrophysics;   

DOI  :  10.3389/fphy.2020.602920

来源: Frontiers

【 摘 要 】

Nuclear reaction rates are one of the most important ingredients in describing how stars evolve. The study of the nuclear reactions involved in different astrophysical sites is thus mandatory to address most questions in nuclear astrophysics. Direct measurements of the cross-sections at stellar energies are very challenging–if at all possible. This is essentially due to the very low cross-sections of the reactions of interest (especially when it involves charged particles), and/or to the radioactive nature of many key nuclei. In order to overcome these difficulties, various indirect methods such as the transfer reaction method at energies above or near the Coulomb barrier are used to measure the spectroscopic properties of the involved compound nucleus that are needed to calculate cross-sections or reaction rates of astrophysical interest. In this review, the basic features of the transfer reaction method and the theoretical concept behind are first discussed, then the method is illustrated with recent performed experimental studies of key reactions in nuclear astrophysics.

【 授权许可】

CC BY