Abstract
The metastable 2S state in muonic hydrogen is particularily interesting because a measurement of the Lamb shift could reduce the uncertainty in the proton charge radius by an order of magnitude. The most important prerequisite for such a measurement is a sufficiently large population and lifetime of the 2S state. We have determined the long-lived and short-lived 2S population, the deexcitation mechanisms and lifetimes, and the cascade time in μp.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Pohl, R. 2S state and Lamb shift in muonic hydrogen. Hyperfine Interact 193, 115–120 (2009). https://doi.org/10.1007/s10751-009-0054-1
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DOI: https://doi.org/10.1007/s10751-009-0054-1
Keywords
- Muonic hydrogen
- Metastable 2S state
- Long-lived population
- Coulomb deexcitation
- Radiative quenching
- Kinetic energy
- Cascade time