2021/11/30 by Hadi Hashamipour, Muhammad Goharipour, K. Azizi +1 · 27 citations
Physics and Astronomy · #Electron #High-Energy Particle Collisions Research #Magnetic form factor #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Parton #Photon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Scattering #Sum rule in quantum mechanics #hep-ex #hep-lat #hep-ph
paper · pdf · open access · doi:10.1103/physrevd.105.054002
published in Physical review. D/Physical review. D. 105(5) (American Physical Society) · 20 pages, 13 figures, and 5 tables
openalex publication_date 2022/03/04 · arxiv created 2022/03/14 · arxiv updated 2022/03/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We determine the valence generalized parton distributions (GPDs) Hvq and Evq with their uncertainties at zero skewness by performing a χ2 analysis of the world electron scattering data considering two-photon exchange corrections. The data include a wide and updated range of the electric and magnetic form factors (FFs) of the proton and neutron. As a result, we find that there are no enough constraints on GPDs Evq from FFs data solely though Hvq are well constrained. By including the new data of the charge and magnetic radius of the nucleon in the analysis, we show that they put new constraints on the final GPDs, especially on Evq . Moreover, we calculate the gravitational FF M2 and the total angular momentum Jq using the extracted GPDs and compare them with the FFs obtained from the light-cone QCD sum rules (LCSR) and Lattice QCD. We show that our results are interestingly in a good consistency with the pure theoretical predictions.