Korobov Vladimir I, Hilico Laurent, Karr Jean-Philippe
Bogolyubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna 141980, Russia.
Laboratoire Kastler Brossel, UPMC-Paris 6, ENS, CNRS; Case 74, 4 place Jussieu, 75005 Paris, France and Université d'Evry-Val d'Essonne, Boulevard François Mitterrand, 91025 Evry Cedex, France.
Phys Rev Lett. 2014 Mar 14;112(10):103003. doi: 10.1103/PhysRevLett.112.103003. Epub 2014 Mar 12.
We present a calculation of the complete set of QED corrections of order mα7 for one-electron two-center systems. Leading corrections of order mα8 are also considered, which allows us to estimate the magnitude of yet uncalculated contributions. The theoretical uncertainty on the frequencies of rovibrational transitions in the hydrogen molecular ions H2+ and HD+, and of two-photon transition in antiprotonic helium is reduced by about 1 order of magnitude, down to (3-4)×10-11 and 10-10, respectively. These results open new perspectives for improved determination of the proton- and antiproton-to-electron mass ratios by precision spectroscopy experiments.
我们给出了单电子双中心系统中量级为(mα^7)的QED完全修正集的计算结果。我们还考虑了量级为(mα^8)的主导修正，这使我们能够估计尚未计算的贡献的大小。氢分子离子(H_2^+)和(HD^+)的振转跃迁频率以及反质子化氦中的双光子跃迁频率的理论不确定性分别降低了约1个数量级，降至((3 - 4)×10^{-11})和(10^{-10})。这些结果为通过精密光谱实验改进质子与电子质量比以及反质子与电子质量比的测定开辟了新的前景。
