2009/11/30 by Dmitry Borisyuk · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Atomic physics #Computational physics #Elastic scattering #Materials science #Mathematics #Nuclear physics #Optics #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Range (aeronautics) #Scattering #Statistical error #Statistics #Systematic error #hep-ph #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2010.05.054
published as Nucl.Phys.A843:59-67,2010 · 6 pages, 4 figures. Numbers slightly changed due to discovered error in minimization program. Sec.III revised, discussion of G_E behaviour added.
arxiv created 2010/04/26 · openalex publication_date 2010/05/21 · arxiv updated 2014/11/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The elastic electron-proton scattering data are analysed in order to determine proton charge and magnetic rms radii, rE and rM. Along with the usual statistical error, we try to estimate a systematic error in the radii, caused by the inadequacy of particular form factor parameterization employed. The range of data to use in the analysis is chosen so as to minimize the total (statistical + systematic) error. We obtain rE = 0.912 +- 0.009 (stat) +- 0.007 (syst) fm, and rM = 0.876 +- 0.010 (stat) +- 0.016 (syst) fm. The cross-section data were corrected for two-photon exchange. We found that without such corrections obtained rE and rM are somewhat smaller while the quality of fit is worse.