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arXiv 1209.1702nucl-thastro-ph.SR
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天体物理能区~ 2 H、~ 6Li、~ 7 Li、~(12)C和~(13)C的辐射中子俘获

The radiative neutron capture on 2H, 6Li, 7Li, 12C and 13C at astrophysical energies

S. B. Dubovichenko, A. V. Dzhazairov-Kakhramanov, N. A. Burkova

摘要:

对原子核辐射中子俘获研究的持续兴趣,一方面是由于该过程在分析原子核和核反应的许多基本性质中的重要作用,另一方面是由于俘获截面数据在核物理和核天体物理的各种应用中的广泛使用,通过对宇宙中原始核合成过程的分析。本文综述了在热能和天体物理能下,对某些轻原子核的辐射中子俘获过程所获得的结果。这些过程的考虑是在潜在的集群模型的框架内完成的,其一般原理和计算方法在前面已经描述过。利用相移分析得到的团簇间势计算辐射俘获特性的方法将被直接证明。所考虑的俘获反应不是恒星热核循环的一部分,但它们是在宇宙形成时发生的原始核合成的基本反应链中。

英文摘要:

The continued interest to the study of the radiative neutron capture on atomic nuclei is caused, on the one hand, by the important role of this process in the analysis of many fundamental properties of nuclei and nuclear reactions, and, on the other hand, by the wide use of the capture cross section data in the various applications of nuclear physics and nuclear astrophysics, and, also, by the analysis of the processes of primordial nucleosynthesis in the Universe. This review is devoted to description of the results obtained for the processes of the radiative neutron capture at thermal and astrophysical energies on certain light atomic nuclei. The consideration of these processes is done in the frame of the potential cluster model, the general principles of which and calculation methods were described earlier. The methods of usage of the obtained on the basis of the phase shift analysis intercluster potentials will be directly demonstrated for calculations of the radiative capture characteristics. The considered capture reactions are not a part of stellar thermonuclear cycles, but they get in the basic reaction chain of primordial nucleosynthesis, taken place in the time of the Universe formation.

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