2014/03/31 by R. González-Jiménez, J. A. Caballero, T. W. Donnelly · 29 citations
Physics and Astronomy · #Asymmetry #Elastic scattering #Electron #Electron scattering #Hadron #Momentum transfer #Nuclear physics #Nuclear physics research studies #Nucleon #Parity (physics) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Scattering #Strangeness #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.90.033002
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 90(3) (American Physical Society) · 6 pages, 4 figures, 2 tables. Accepted for publication in PRD
arxiv created 2014/07/18 · openalex publication_date 2014/08/01 · arxiv updated 2014/08/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We perform a statistical analysis of the full set of parity-violating asymmetry data for elastic electron scattering including the most recent high precision measurement from Q-weak. Given the basis of the present analysis, our estimates appear to favor nonzero vector strangeness, specifically, positive (negative) values for the electric (magnetic) strange form factors. We also provide an accurate estimate of the axial-vector nucleon form factor at zero momentum transfer, GAep(0). Our study shows GAep(0) to be importantly reduced with respect to the currently accepted value. We also find our analysis of data to be compatible with the Standard Model values for the weak charges of the proton and neutron.