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Title: Evaluation of the Proton Charge Radius from Electron–Proton Scattering

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.
Authors:
 [1] ;  [2]
  1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Department für Physik, Universität Basel, CH4056 Basel (Switzerland)
Publication Date:
OSTI Identifier:
22493961
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physical and Chemical Reference Data; Journal Volume: 44; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELASTIC SCATTERING; ELECTRON-PROTON INTERACTIONS; ELECTRONS; EVALUATION; HYDROGEN; PARTICLE RADII; PROTONS; VISIBLE RADIATION