G. P. Zhang

collaborators

2 papers

hep-ex2026

First measurements of the branching fractions of $J / ψ$ and $ψ (3686) \to Σ^{0} Σ ˉ^{0} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +771

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ and $(2712 \pm 14) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the hadronic decays $J/ψ\to…

cond-mat.mtrl-sci2026

Beyond Local Berry Geometry: A First-Principles Finite-Momentum Theory of Electronic Position

M. S. Si, Y. Q. Li, G. P. Zhang

Electronic position controls how a crystal polarizes and responds to an external field. In crystals, it is usually described through local changes of electronic states in momentum…

First measurements of the branching fractions of J/ψ and ψ(3686)→Σ0Σˉ0η

Beyond Local Berry Geometry: A First-Principles Finite-Momentum Theory of Electronic Position

First measurements of the branching fractions of $J / ψ$ and $ψ (3686) \to Σ^{0} Σ ˉ^{0} η$