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arXiv · 1702.01189

Review of experimental and theoretical status of the proton radius puzzle

Richard J. Hill
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Abstract

The discrepancy between the measured Lamb shift in muonic hydrogen and expectations from electron-proton scattering and regular hydrogen spectroscopy has become known as the proton radius puzzle, whose most "mundane" resolution requires a $> 5 \sigma$ shift in the value of the fundamental Rydberg constant. I briefly review the status of spectroscopic and scattering measurements, recent theoretical developments, and implications for fundamental physics.

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Richard J. Hill. 2017-02-03. Review of experimental and theoretical status of the proton radius puzzle. https://doi.org/10.1051/epjconf/201713701023

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