Theoretical nuclear physics from first principles ((09) N02#)

NT项目的目标是使用最先进的少数和多体方法提供具有量化不确定性的核结构和反应的第一性原理计算。这是解释现有数据的关键，为未来的实验提供指导，并有助于在与核物理的界面上搜索原子和粒子物理实验中的新物理。在少体方面，我们的主要目标是改进对缪子原子兰姆位移的核结构修正的计算，并首次获得对𝜇D和𝜇3He+超精细分裂的核结构修正的计算。在多体方面，目标是利用耦合团簇理论进行光核反应的改进计算和轻子-核碰撞的新计算。对少数和多体核系统中的中子皮厚度和一般电磁过程的理论研究将在不同程度上补充目前的CRC1044实验工作，其中有一个亟需的核理论组成部分。

Project NT aims at providing first principles calculations of nuclear structure and reactions with quantified uncertainties using state-of-the-art few- and many-body methods. This is key to interpret existing data, provide guidance for future experiments and help searches of new physics in atomic and particle physics experiments at the interface with nuclear physics. On the few-body front, the major goal is to provide improved calculations of nuclear structure corrections to the Lamb shift in muonic atoms and to obtain first calculations of nuclear structure corrections to the hyperfine splitting in 𝜇D and 𝜇3He+. On the many-body front, the aim is to perform improved calculations of photonuclear reactions and novel computations of lepton-nucleus collisions using coupled-cluster theory. Theoretical studies of neutron-skin thickness and, in general, of electromagnetic processes in few- and many-body nuclear systems will complement at various levels the present CRC 1044 experimental efforts with a much needed nuclear theory component.