论文标题
在搜索新物理学的搜索中，bohr-weisskopf效应的经验确定和改进了精确原子理论的检验
Empirical determination of the Bohr-Weisskopf effect in cesium and improved tests of precision atomic theory in searches for new physics
论文作者
论文摘要
核磁矩跨核的有限分布为被称为Bohr-Weisskopf（BW）效应的超细结构做出了贡献。我们在地面和原子CS -133的激发状态下获得了-0.24（18）％的经验值。该值是从历史的Muonic原子测量结果中找到的，与我们的Muonic原子和原子多体计算相结合。效应在超细结构中的效果与使用均匀磁化分布发现的值相差0.5％，在过去的几十年中，这种效果通常在精确的重原子社区中使用。我们还推断出其他同位素和剖宫产状态的BW效应的准确值。这些结果使得能够在核区域以前所未有的0.2％水平在核区域进行测试，并且需要开发精度原子多体型方法。这对于增加对新物理学的精确原子搜索的发现潜力，尤其是针对剖宫产的原子偶然行为很重要。
The finite distribution of the nuclear magnetic moment across the nucleus gives a contribution to the hyperfine structure known as the Bohr-Weisskopf (BW) effect. We have obtained an empirical value of -0.24(18)% for this effect in the ground and excited s states of atomic Cs-133. This value is found from historical muonic-atom measurements in combination with our muonic-atom and atomic many-body calculations. The effect differs by 0.5% in the hyperfine structure from the value found using the uniform magnetization distribution, which has been commonly employed in the precision heavy-atom community over the last several decades. We also deduce accurate values for the BW effect in other isotopes and states of cesium. These results enable cesium atomic wave functions to be tested in the nuclear region at an unprecedented 0.2% level, and are needed for the development of precision atomic many-body methods. This is important for increasing the discovery potential of precision atomic searches for new physics, in particular for atomic parity violation in cesium.
