We present a determination of optical potentials using the double-folding method based on chiral effective field theory nucleon-nucleon interactions at next-to-next-to-leading order combined with dispersion relations to constrain the imaginary part. This approach is benchmarked on ${}^{16}$O–${}^{16}$O collisions, and extended to the ${}^{12}$C–${}^{12}$C and ${}^{12}$C–${}^{16}$O cases. Predictions derived from these potentials are compared to data for elastic scattering at energies up to 1000 MeV, as well as for fusion at low energy. Without adjusting parameters, excellent agreement with experiment is found. In addition, we study the sensitivity of the corresponding cross sections to the nucleon-nucleon interactions and nuclear densities used.

中文翻译：

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色散关系从手性有效场理论应用于双折叠势

我们提出了一种基于手性有效场理论核子-核子相互作用的双折法的确定方法，该方法以色散关系约束下一个到下一个前导顺序。该方法的基准是${}^{16}$O –${}^{16}$O碰撞，并扩展到 ${}^{12}$C-${}^{12}$C和 ${}^{12}$C-${}^{16}$O个案例。将来自这些电势的预测与数据进行比较，以获取能量高达1000 MeV时的弹性散射，以及获取低能量时的聚变数据。在不调整参数的情况下，发现与实验极好的一致性。此外，我们研究了相应横截面对所使用的核子-核子相互作用和核密度的敏感性。