The proton radius puzzle

Abstract

High-precision measurements of the proton radius from laser spectroscopy of muonic hydrogen demonstrated up to six standard deviations smaller values than obtained from electron-proton scattering and hydrogen spectroscopy. The status of this discrepancy, which is known as the proton radius puzzle will be discussed in this paper, complemented with the new insights obtained from spectroscopy of muonic deuterium.

arXiv commentMoriond 2017 conference, 8 pages, 4 figures

References in corpus (6)

• Nucleon spin-averaged forward virtual Compton tensor at large $Q^2$
• Review of experimental and theoretical status of the proton radius puzzle
• Sea Quarks Contribution to the Nucleon Magnetic Moment and Charge Radius at the Physical Point
• Avoiding common pitfalls and misconceptions in extractions of the proton radius
• Solution of the proton radius puzzle? Low momentum transfer electron scattering data are not enough
• Proton charge radius and the perturbative quantum electrodynamics

Cited by in corpus (3)

• Accurate nucleon electromagnetic form factors from dispersively improved chiral effective field theory
• Light dark matter searches with positrons
• Scale relativity of the proton radius: solving the puzzle