The main components of nuclear fusion processes that occur in stars are the radiative capture and its inverse reaction, during helium transforms into heavier elements. The deuteron-alpha radiative capture and the ${}^{6}Li(\gamma ,\alpha )d$ reactions are studied using Effective Field Theory (EFT). The scattering amplitude for the initial P-wave states of deuteron-alpha for the sum of $E_1$ and $E_2$ transition are found, up to next to leading order (NLO). Furthermore, the photodisintegration rate of the ${}^{6}Li(\gamma ,\alpha )d$ reaction is calculated. The obtained results are in good agreement with the available experimental data and those of other theoretical models, at astrophysical energies.

中文翻译：

---

${}^6\mathrm{大号}\mathrm{一世}$ 天体能量破裂和形成

发生在恒星中的核聚变过程的主要成分是在氦转换成重元素期间的辐射捕获及其逆反应。氘-α辐射捕获和${}^6\mathrm{大号}\mathrm{一世}（\gamma ，\alpha ）d$使用有效场论（EFT）研究反应。氘核α初始P波状态的散射幅度为${Ë}_{\mathrm{1个}}$ 和 ${Ë}_2$找到过渡，直到领先订单（NLO）为止。此外，光解离速率${}^6\mathrm{大号}\mathrm{一世}（\gamma ，\alpha ）d$计算反应。在天体能量下，获得的结果与现有的实验数据和其他理论模型的结果非常吻合。