RT Journal Article
T1 Nucleon elastic form factors at accessible large spacelike momenta
A1 Cui, Zhu-Fang
A1 Chen, Chen
A1 Binosi, Daniele
A1 Rodríguez Quintero, José
AB A Poincaré-covariant quark þ diquark Faddeev equation, augmented by a statistical implementation ofthe Schlessinger point method for the interpolation and extrapolation of smooth functions, is used tocompute nucleon elastic form factors on 0 ≤ Q2 ≤ 18m2N (mN is the nucleon mass) and elucidate their roleas probes of emergent hadronic mass in the Standard Model. The calculations expose features of the formfactors that can be tested in new generation experiments at existing facilities, e.g., a zero in GpE=GpM, amaximum in GnE=GnM, and a zero in the proton’s d-quark Dirac form factor, Fd1. Additionally, examinationof the associated light-front-transverse number and anomalous magnetization densities reveals inter alia:a marked excess of valence u quarks in the neighborhood of the proton’s center of transverse momentum,and that the valence d quark is markedly more active magnetically than either of the valence u quarks.The calculations and analysis also reveal other aspects of nucleon structure that could be tested with ahigh-luminosity accelerator capable of delivering higher beam energies than are currently available.
PB American Physical Society
SN 2470-0029
YR 2020
FD 2020-07
LK http://hdl.handle.net/10272/18792
UL http://hdl.handle.net/10272/18792
LA eng
NO Cui, Z.-F., Chen, C., Binosi, D. ... Rodríguez Quintero, J. (2020). Nucleon elastic form factors at accessible large spacelike momenta. Physical Review D, 102(1). DOI: https://doi.org/10.1103/physrevd.102.014043
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026