Review of experimental and theoretical status of the proton radius puzzle

Research output: Contribution to journalConference articlepeer-review

33 Scopus citations


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 > 5σ 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.

Original languageEnglish
Article number01023
JournalEPJ Web of Conferences
StatePublished - Mar 22 2017
Event12Ith Quark Confinement and the Hadron Spectrum - Thessaloniki, Greece
Duration: Aug 29 2016Sep 3 2016

Bibliographical note

Publisher Copyright:
© The Authors, published by EDP Sciences, 2017.

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Review of experimental and theoretical status of the proton radius puzzle'. Together they form a unique fingerprint.

Cite this