氢的 1S-3S 跃迁频率的新测量：对质子电荷半径之谜的贡献。
New Measurement of the 1S-3S Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle.
机构信息
Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, 4 place Jussieu, Case 74, 75252 Paris Cedex 05, France.
LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61 avenue de l'Observatoire, 75014 Paris, France.
出版信息
Phys Rev Lett. 2018 May 4;120(18):183001. doi: 10.1103/PhysRevLett.120.183001.
We present a new measurement of the 1S-3S two-photon transition frequency of hydrogen, realized with a continuous-wave excitation laser at 205 nm on a room-temperature atomic beam, with a relative uncertainty of 9×10^{-13}. The proton charge radius deduced from this measurement, r_{p}=0.877(13) fm, is in very good agreement with the current CODATA-recommended value. This result contributes to the ongoing search to solve the proton charge radius puzzle, which arose from a discrepancy between the CODATA value and a more precise determination of r_{p} from muonic hydrogen spectroscopy.
我们提出了一种新的氢的 1S-3S 双光子跃迁频率的测量结果，该结果使用 205nm 的连续波激发激光在室温原子束中实现，相对不确定度为 9×10^{-13}。由此测量得出的质子电荷半径 r_{p}=0.877(13) fm，与当前 CODATA 推荐值非常吻合。该结果有助于解决质子电荷半径之谜，这一谜团源于 CODATA 值与从缪子氢光谱学更精确确定的 r_{p}之间的差异。
Zotero 插件