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12B(n,γ)13B reaction as an alternative path to astrophysical synthesis of 13C isotope
Nuclear Physics A ( IF 1.7 ) Pub Date : 2021-04-14 , DOI: 10.1016/j.nuclphysa.2021.122197
S.B. Dubovichenko , N.A. Burkova , A.V. Dzhazairov-Kakhramanov , A. Yertaiuly

The total cross sections of the neutron radiative capture on 12B at astrophysical energies to the ground state of 13B, have been calculated in the energy range of 10−8 to 10 MeV within the framework of a modified potential cluster model with the classification of orbital states according to Young diagrams. Reaction rates in the temperature range of 0.01 to 10 T9, and their analytical parameterizations were obtained. The calculated rates of 12B(n,γ)13B excess the previous results obtained by other approaches by approximately to one order of magnitude. Cross sections and reaction rates of 12C(n,γ0+1+2+3)13C are calculated and compared to the n10B, n11B, n12B, and p12C reaction rates. It is proposed that the obtained rates of the 12B(n,γ)13B reaction may be suggested for the discussion of novel scenarios of stable isotope 13C synthesis when p-captures on 12C are not present.



中文翻译:

12 B(nγ13 B反应作为13 C同位素天体合成的替代途径

在修正的势能簇模型的框架内,在10 -8至10 MeV的能量范围内,以10 -8至10 MeV的能量范围计算了在天体物理能量下13 B处于天体能量时12 B上中子辐射俘获的总截面。根据杨氏图的轨道状态。反应速率在0.01到10的温度范围内Ť9并获得了其分析参数化。计算出的12 B(ñγ13 B比其他方法获得的先前结果大约高一个数量级。截面和反应速率为12 C(ñγ0+1个+2个+3)计算出13 C并与ñ10B, ñ11B, ñ12乐队 p12C反应速率。建议获得的12 B(ñγ13乙反应可建议的讨论新型稳定同位素的场景13 C综合当在p捕获12 C是不存在。

更新日期:2021-04-21
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