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 ($CP$) is tested in the hadronic transition $\psi (3686)\to {\pi }^{+}{\pi }^{-}J/\psi$, using a dataset of $(2712.4\pm 14.3)\times 10^6$ $ψ(3686…