Z. Y. Zhang

collaborators

2 papers

hep-ex2025

Precise Measurement of Chromoelectric Dipole Moment of the Charm Quark

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

The combined symmetry of charge conjugation and parity ( $C P$ ) is tested in the hadronic transition $ψ (3686) \to π^{+} π^{-} J / ψ$ , using a dataset of $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ(3686…

hep-ex2025

Observation of $χ_{c J} (J = 0, 1, 2) \to p p ˉ η η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected by the BESIII detector operating at the BEPCII storage ring, the decays $χ_{c J} (J = 0, 1, 2) \to p p ˉ η η$ are obs…

Precise Measurement of Chromoelectric Dipole Moment of the Charm Quark

Observation of χcJ​(J=0,1,2)→ppˉ​ηη

Observation of $χ_{c J} (J = 0, 1, 2) \to p p ˉ η η$