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Showing 1–5 of 5 results
Advanced filters: Author: Z.-E. Meziani Clear advanced filters

  • 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

  • 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

  • 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

  • A high-precision parity-violating electron–quark scattering experiment provides measurements of a combination of electron–quark weak couplings with a precision five times higher than the single previous direct study, confirming the predictions of the electroweak particle-physics theory and providing constraints on parity-violating interactions beyond the standard model.

    • D. Wang
    • K. Pan
    • X. Zheng
    Research
    Nature
    Volume: 506, P: 67-70