6 papers
Orbital angular momentum in the pion and kaon: rest-frame and light-front
Y. -Y. Xiao, Z. -N. Xu, Z. -Q. Yao +2
Orbital angular momentum (OAM) is not a Poincaré invariant quantity; so, its value is observer dependent. Notwithstanding that, in quantum chromodynamics, a Poincaré-invariant th…
Light-Front Transverse Nucleon Charge and Magnetisation Densities
Z. -N. Xu, Z. -Q. Yao, P. Cheng +3
Nucleon elastic electromagnetic form factors obtained using both the three-body and quark + fully-interacting-diquark pictures of nucleon structure are employed to calculate an arr…
Insights into Meson and Baryon Structure using Continuum Schwinger Function Methods
Daniele Binosi, Craig D. Roberts, Zhao-Qian Yao
The bulk of visible mass is supposed to emerge from nonperturbative dynamics within quantum chromodynamics (QCD). Following years of development and refinement, continuum and latti…
Quark + Diquark Description of Nucleon Elastic Electromagnetic Form Factors
Peng Cheng, Zhao Qian Yao, Daniele Binosi +2
Working with a Poincaré-covariant quark + diquark, , Faddeev equation approach to nucleon structure, a refined symmetry preserving current for electron + nucleon elastic sc…
Distribution Functions of a Radially Excited Pion
Z. -N. Xu, Z. -Q. Yao, D. Binosi +3
A nonperturbatively-improved, symmetry-preserving approximation to the quantum field equations relevant in calculations of meson masses and interactions is used to deliver predicti…
Nucleon Gravitational Form Factors
Z. -Q. Yao, Y. -Z. Xu, D. Binosi +6
A symmetry-preserving analysis of strong interaction quantum field equations is used to complete a unified treatment of pion, kaon, nucleon electromagnetic and gravitational form f…