论文标题
建模中准双β衰减的核基质元素的建模进步
Advances in modeling nuclear matrix elements of neutrinoless double beta decay
论文作者
论文摘要
用于中性核心核心核的中性元β衰减的精确核基质元素（NME）对于未来实验的设计和解释很重要。从第一原则对这些NME的建模中取得了重大进展。 48CA的NME在手性EFT内构建的相同核相互作用和相同的衰减算子中构建的三个不同的从头算计算中表现出了很好的一致性。这些研究为从头开始计算的矩阵元素的衰减（例如76GE，130TE和136XE）的衰减打开了大门。最终目标是使用可控的近似值计算NME，使用核相互作用和弱从手性EFT得出的弱过渡算子。我们期望在不久的将来取得更大的进步。
Accurate nuclear matrix elements (NMEs) for neutrinoless double beta decays of candidate nuclei are important for the design and interpretation of future experiments. Significant progress has been made in the modeling of these NMEs from first principles. The NME for 48Ca shows a good agreement among three different ab initio calculations starting from the same nuclear interaction constructed within the chiral EFT and the same decay operator. These studies open the door to ab initio calculations of the matrix elements for the decay of heavier nuclei such as 76Ge, 130Te, and 136Xe. The ultimate goal is the computation of NMEs in many-body calculations with controllable approximations, using nuclear interactions and weak transition operators derived consistently from chiral EFT. We are expecting more progress towards this goal in the near future.
