2013/04/30 by N. L. Hall, Nathan L. Hall, P. G. Blunden +4 · 42 citations
Physics and Astronomy · #Electron #High-Energy Particle Collisions Research #Inelastic scattering #Nuclear physics #Parity (physics) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevd.88.013011
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 88(1) (American Physical Society) · 38 pages, 16 figures, to appear in Phys. Rev. D
arxiv created 2013/07/18 · openalex publication_date 2013/07/18 · arxiv updated 2013/08/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present a comprehensive analysis of \ensuremathγZ interference corrections to the weak charge of the proton measured in parity-violating electron scattering, including a survey of existing models and a critical analysis of their uncertainties. Constraints from parton distributions in the deep-inelastic region, together with new data on parity-violating electron scattering in the resonance region, result in significantly smaller uncertainties on the corrections compared to previous estimates. At the kinematics of the Qweak experiment, we determine the \ensuremathγZ box correction to be \ensuremath\mathfrakRe\ensuremath\square_\ensuremathγZV=(5.57\ifmmode±\else\textpm\fi0.36)\ifmmode×\else\texttimes\fi10^\ensuremath-3. The new constraints also allow precise predictions to be made for parity-violating deep-inelastic asymmetries on the deuteron.