Model-independent determination of the strong-phase difference between D^0 and \bar{D}^0 \to π^+π^-π^+π^- decays

Measurements of the strong-phase difference between D^0 and \bar{D}^0\to\pi^+\pi^-\pi^+\pi^- are performed in bins of phase space. The study exploits a sample of quantum-correlated D\bar{D} mesons collected by the BESIII experiment in e^+e^- collisions at a center-of-mass energy of 3.773~GeV, corresponding to an integrated luminosity of 2.93~fb^{-1}. Here, D denotes a... Show more