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Showing 1–10 of 10 results
Advanced filters: Author: N. Sparveris Clear advanced filters

  • The charge radius of nucleons provides information about their structure. Here the authors present a method, based values of neutron electric form factors, to determine the charge radius of the neutron and provide information on improving the uncertainty of neutron charge radius measurements

    • H. Atac
    • M. Constantinou
    • N. Sparveris
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • The gluonic gravitational form factor of the proton was determined using various models, and these analyses showed that the mass radius of the proton was smaller than the electric charge radius.

    • B. Duran
    • Z.-E. Meziani
    • Z. Zhao
    Research
    Nature
    Volume: 615, P: 813-816

  • Measurements of the proton’s spin structure in experiments scattering a polarized electron beam off polarized protons in regions of low momentum transfer squared test predictions from chiral effective field theory of the strong interaction.

    • X. Zheng
    • A. Deur
    • Z. W. Zhao
    Research
    Nature Physics
    Volume: 17, P: 736-741

  • Measurements of the proton’s electromagnetic structure show enhancement of its electric generalized polarizability compared with theoretical expectations, confirming the presence of a new dynamical mechanism not accounted for by current theories.

    • R. Li
    • N. Sparveris
    • J. Zhou
    Research
    Nature
    Volume: 611, P: 265-270

  • High-energy electron scattering that can isolate pairs of nucleons in high-momentum configurations reveals a transition to spin-independent scalar forces at small separation distances, supporting the use of point-like nucleon models to describe dense nuclear systems.

    • A. Schmidt
    • J. R. Pybus
    • X. Zheng
    Research
    Nature
    Volume: 578, P: 540-544

  • Electron scattering measurements are shown to reproduce only qualitatively state-of-the-art lepton–nucleus energy reconstruction models, indicating that improvements to these particle-interaction models are required to ensure the accuracy of future high-precision neutrino oscillation experiments.

    • M. Khachatryan
    • A. Papadopoulou
    • S. Gardiner
    Research
    Nature
    Volume: 599, P: 565-570

  • Simultaneous high-precision measurements of the EMC effect and short-range correlated abundances for several nuclei reveal a universal modification of the structure of nucleons in short-range correlated neutron–proton pairs.

    • B. Schmookler
    • M. Duer
    • X. Zheng
    Research
    Nature
    Volume: 566, P: 354-358

  • Electron-scattering experiments reveal that the fraction of high-momentum protons in medium-to-heavy nuclei increases considerably with neutron excess, whereas that of high-momentum neutrons decreases slightly, in contrast to shell-model predictions.

    • M. Duer
    • O. Hen
    • Z. W. Zhao
    Research
    Nature
    Volume: 560, P: 617-621