Abstract
AbstractMuons are puzzling physicists since their discovery when they were first thought to be the meson predicted by Yukawa to mediate the strong force. The recent result at Fermilab on the muon g-2 anomaly puts the muonic sector once more under the spotlight and calls for further measurements with this particle. Here, we present the results of the measurement of the 2S1/2, F = 0 → 2P1/2, F = 1 transition in Muonium. The measured value of 580.6(6.8) MHz is in agreement with the theoretical calculations. A value of the Lamb shift of 1045.5(6.8) MHz is extracted, compatible with previous experiments. We also determine the 2S hyperfine splitting in Muonium to be 559.6(7.2) MHz. The measured transition being isolated from the other hyperfine levels holds the promise to provide an improved determination of the Muonium Lamb shift at a level where bound state QED recoil corrections not accessible in hydrogen could be tested. This result would be sensitive to new physics in the muonic sector, e.g., to new bosons which might provide an explanation of the g-2 muon anomaly and allow to test Lorentz and CPT violation. We also present the observation of Muonium in the n = 3 excited state opening up the possibility of additional precise microwave measurements.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
Reference50 articles.
1. Neddermeyer, S. H. & Anderson, C. D. Note on the nature of cosmic-ray particles. Phys. Rev. 51, 884–886 (1937).
2. Kunze, P. Untersuchung der ultrastrahlung in der wilsonkammer. Zeitschrift für Physik 83, 1–18 (1933).
3. Yukawa, H. On the interaction of elementary particles. i. Proc. Physico-Mathematical Soc. Japn. 3rd Series 17, 48–57 (1935).
4. Conversi, M., Pancini, E. & Piccioni, O. On the disintegration of negative mesons. Phys. Rev. 71, 209–210 (1947).
5. Tomonaga, S. & Araki, G. Effect of the nuclear coulomb field on the capture of slow mesons. Phys. Rev. 58, 90–91 (1940).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献