The proton radius puzzle – 9 years later

The proton radius puzzle – 9 years later

High-precision measurements of the proton radius via scattering, electric hydrogen spectroscopy and muonic hydrogen spectroscopy do not agree on the level of more than 5 σ. This proton radius puzzle persists now for almost a decade. This paper gives a short summary over the progress in the solution...

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Bibliographic Details
Published in:EPJ Web of Conferences Vol. 234; p. 1001
Main Author: Bernauer, Jan C.
Format: Journal Article Conference Proceeding
Language:English
Published: Les Ulis EDP Sciences 2020
Subjects:
Nuclear physics
Protons
Spectrum analysis
Online Access:Get full text
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Description
Summary:High-precision measurements of the proton radius via scattering, electric hydrogen spectroscopy and muonic hydrogen spectroscopy do not agree on the level of more than 5 σ. This proton radius puzzle persists now for almost a decade. This paper gives a short summary over the progress in the solution of the puzzle as well as an overview over the planned experiments to finally solve this puzzle at the interface of atomic and nuclear physics.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202023401001