Model-independent extraction of the proton charge radius from electron scattering

Research output: Contribution to journalArticlepeer-review

159 Scopus citations

Abstract

Constraints from analyticity are combined with experimental electron-proton scattering data to determine the proton charge radius. In contrast to previous determinations, we provide a systematic procedure for analyzing arbitrary data without model-dependent assumptions on the form-factor shape. We also investigate the impact of including electron-neutron scattering data, and ππ→NN̄ data. Using representative data sets we find rEp=0.870±0.023±0.012fm using just proton scattering data; rEp=0.880-0.020+0.017±0.007fm adding neutron data; and rEp=0.871±0.009±0.002±0.002fm adding ππ data. The analysis can be readily extended to other nucleon form factors and derived observables.

Original languageEnglish
Article number113005
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume82
Issue number11
DOIs
StatePublished - Dec 3 2010

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Model-independent extraction of the proton charge radius from electron scattering'. Together they form a unique fingerprint.

Cite this