Abstract Two of the main components of nuclear fusion processes which occur in stars are the radiative capture of deuteron-alpha and its inverse reaction during which helium transforms into larger elements. One of the reactions occuring is the production of 6Li through the d(α, γ)6Li reaction that is supported by the Big Bang model. The process of radiation in the energy region 0.07 MeV ≤ Ecm ≤ 0.41 MeV has been studied in the framework of Effective Field Theory (EFT) at low energy. Further, within the EFT framework deuteron is assumed as a dibaryon and the coulomb effect between deuteron and alpha is ignored. The reaction amplitude for the P-wave initial states 3P2, 3P0 and 2P3/2 and the astrophysical S-factor for sum of E1 and E2 transitions are found in the framework of EFT up to NLO. The results of this model for the astrophysical S-factor at low energies are comparable with the available experimental data and those of other theoretical models.

中文翻译：

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通过有效场理论的 d-α 辐射捕获过程

摘要 在恒星中发生的核聚变过程的两个主要组成部分是氘α的辐射俘获及其逆反应，在此过程中氦转化为更大的元素。发生的反应之一是通过大爆炸模型支持的 d(α, γ)6Li 反应生成 6Li。在低能量的有效场理论 (EFT) 框架中研究了能量区域 0.07 MeV ≤ Ecm ≤ 0.41 MeV 中的辐射过程。此外，在 EFT 框架内，氘核被假定为双重子，并且忽略了氘核和阿尔法之间的库仑效应。P 波初始状态 3P2、3P0 和 2P3/2 的反应幅度以及 E1 和 E2 跃迁总和的天体物理 S 因子在 EFT 到 NLO 的框架中找到。