Trojin Horse Method for Indirect Measurement of Astrophysic S Factor
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Graphical Abstract
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Abstract
The nuclear reaction rates in the astrophysical environment are indispensable input parameters in different astrophysics theories, and play important roles in understanding the astrophysical nuclear synthesis and the evolution of the universe. However，at the astrophysical temperature, the nuclear reactions proceed at very low energies. Due to the Coulumb barrier the reaction cross sections are very small, so that the direct measurement is almost impossible. The Trojin horse theory provides a useful method to measure indirectly the low energy two body cross sections by measuring the suitable three body reactions. Some approximations are applied in the theory to get convenient formula. This paper introduces the Trojin horse theory and its application in astrophysics nuclear reactions.
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