论文标题
双开创原子的结构
Structure of double pionic atoms
论文作者
论文摘要
从理论上讲，我们研究了双开创性原子的结构，其中两个带负电荷的亲Pions（$π^ - $）在原子轨道中绑定。从多骨系统的角度来看，双开创性原子被认为是一个有趣的系统。此外，有可能推断出有关Isospin $ i = 2 $ $ππ$相互作用和Pion-Nucleus强相互作用的有价值信息。在本文中，我们考虑了$ππ$ strong和电磁相互作用，并通过扰动理论评估了重核中双率原子对结合能的影响。我们研究了两个先驱状态的几种组合，发现由于$ππ$相互作用而引起的能量移位的数量级约为强烈相互作用的10 keV，而对于基地状态的电磁相互作用约为100 keV。
We study theoretically the structure of double pionic atoms, in which two negatively charged pions ($π^-$) are bound in the atomic orbits. The double pionic atom is considered to be an interesting system from the point of view of the multi bosonic systems. In addition, it could be possible to deduce valuable information on the isospin $I = 2$ $ππ$ interaction and the pion-nucleus strong interaction. In this paper, we take into account the $ππ$ strong and electromagnetic interactions, and evaluate the effects on the binding energies by perturbation theory for the double pionic atoms in heavy nuclei. We investigate several combinations of two pionic states and find that the order of magnitude of the energy shifts due to the $ππ$ interaction is around 10 keV for the strong interaction and around 100 keV for the electromagnetic interaction for the ground states.
