Evaluation of the Proton Charge Radius from Electron–Proton Scattering

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Journal of Physical and Chemical Reference Data

DOI:https://doi.org/10.1063/1.4921430· OSTI ID:22493961

Arrington, John ^[1]; Sick, Ingo ^[2]

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1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Department für Physik, Universität Basel, CH4056 Basel (Switzerland)

In light of the proton radius puzzle, the discrepancy between measurements of the proton charge radius from muonic hydrogen and those from electronic hydrogen and electron–proton (e–p) scattering measurements, we re-examine the charge radius extractions from electron scattering measurements. We provide a recommended value for the proton root-mean-square charge radius, r{sub E} = 0.879 ± 0.011 fm, based on a global examination of elastic e–p scattering data. The uncertainties include contributions to account for tension between different data sets and inconsistencies between radii using different extraction procedures.

• OSTI ID: 22493961
• Journal Information: Journal of Physical and Chemical Reference Data, Vol. 44, Issue 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0047-2689
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELASTIC SCATTERING
ELECTRON-PROTON INTERACTIONS
ELECTRONS
EVALUATION
HYDROGEN
PARTICLE RADII
PROTONS
VISIBLE RADIATION