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hep-ph2025
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 theo…
hep-ph2025
Imaging the charge distributions of flavor-symmetric and -asymmetric mesons
Yin-Zhen Xu, Adnan Bashir, Khépani Raya +2
We investigate the internal structure of a comprehensive set of pseudoscalar and vector mesons, including both flavor-symmetric and flavor-asymmetric systems, by reconstructing the…
hep-ph2025
Pion, Kaon and nucleon gravitational form factors
Zhao-Qian Yao, Yin-Zhen Xu, Daniele Binosi +5
A unified set of predictions for pion, kaon and nucleon gravitational form factors is obtained using a symmetry-preserving truncation of each relevant quantum field equation. A cru…