A long-standing problem of fine-structure anomalies in muonic atoms is revisited by considering the $Δ2p$ splitting in muonic $^{90}\mathrm{Zr}$, $^{120}\mathrm{Sn}$ and $^{208}\mathrm{Pb}$ and the $Δ3p$ splitting in muonic $^{208}\mathrm{Pb}$. State-of-the-art techniques from both nuclear and atomic physics are brought together in order to perform the most comprehensive to date calculations of nuclear-polarization energy shifts. Barring the more subtle case of muonic $^{208}\mathrm{Pb}$, the results suggest that the dominant calculation uncertainty is much smaller than the persisting discrepancies between theory and experiment. We conclude that the resolution to the anomalies is likely to be rooted in refined QED corrections or even some other previously unaccounted-for contributions.
Comment on "Sixth-Order Vacuum-Polarization Contribution to the Lamb Shift of Muonic Hydrogen" by T. Kinoshita and M. Nio, Phys. Rev. Lett. 82, 3240 (1999)
在评论中,我们讨论了兰姆位移的$α^3$校正的附加项,这在Kinoshita和Nio的计算中被遗漏(Phys. Rev. Lett. 82,3240(1999))。
Relativistic recoil effects for energy levels in a muonic atom within a Grotch-type approach: An application to the one-loop electronic vacuum polarization
Technion–Israel Institute of Technology(以色列理工学院);Max Planck Institute for Nuclear Physics(马克斯·普朗克核物理研究所);KU Leuven(荷语鲁汶大学);Sorbonne Université(索邦大学);CNRS(法国国家科学研究中心);ENS-PSL Research University(巴黎高等师范学院-PSL研究大学);Collège de France(法兰西学院)
Probing a Fifth Force in Muonic Atoms through Lamb Shifts and Hyperfine Structure
Hebei University(河北大学);College of Physics Science and Technology, Hebei University(河北大学物理科学与技术学院);Institute of Modern Physics, Chinese Academy of Sciences(中国科学院近代物理研究所);Nanjing University(南京大学);School of Physics, Nanjing University(南京大学物理学院);RIKEN Nishina Center, RIKEN(理化学研究所西村中心);University of Chinese Academy of Sciences(中国科学院大学);School of Nuclear Science and Technology, University of Chinese Academy of Sciences(中国科学院大学核科学与技术学院);Southern Center for Nuclear Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences(中国科学院近代物理研究所南方核科学理论中心)
Non-Perturbative Relativistic Calculation of the Muonic Hydrogen Spectrum
通过精确的、非微扰的数值解,考虑了有限尺寸的库仑力和真空极化,研究了μ子氢2 P ^{F=2}_{3/2}到2S^{F=1}_{1/2}的跃迁.结果与早期的微扰计算(主要)Borie,Martynenko,和Pachucki;和实验结果最近提出的Pohl等人,其中这种比较被解释为需要从电子散射和电子氢分析中获得的质子电荷半径进行修改。我们发现微扰和非微扰计算之间没有显着的差异,并提出我们的结果作为微扰方法的确认。
Hyperfine structure of the ground state muonic He-3 atom
根据精细结构常数$α$和电子与μ子质量比的微扰理论,计算了μ子氦原子$(μ e \ ^3_2He)$的单圈真空极化修正、电子顶点修正以及对基态超精细分裂的原子核结构修正.由于对$α^5$和$α^6$阶数的新修正,我们得到了基态超精细分裂$Δν^{hfs}=4166.471$ MHz的全部结果,改进了Lakdawala和Mohr的计算.超精细分裂的理论结果和实验值之间的剩余差异在于理论和实验误差的范围,并需要随后的高阶修正的调查。