Speaker
Description
We measure the strong-phase difference between $D^{0}$ and $\bar{D_{0}}\to K_{S}^{0}K^{+}K^{-}$ using a data sample corresponding to an integrated luminosity of 2.92 ${\rm fb}^{-1}$ collected in $e^{+}e^{-}$ collisions at a centre-of-mass energy corresponding to the mass of the $\psi(3770)$. The D0-D0bar meson pairs produced are in a quantum-correlated state, their subsequent decays are recorded by the BESIII 4$\pi$ magnetic spectrometer. The measured value of the strong-phase difference is an essential input to determining the value of Cabbibo-Kobayashi-Maskawa (CKM) angle $\gamma/\phi_{3}$ through the decay $B^{-}\to DK^{-}$, where $D$ can be $D^{0}$ or $\bar{D^{0}}$ decaying to $K_{S}^{0}K^{+}K^{-}$. The measured values of strong-phase difference is most precise to this date. In this talk, I will also highlight the recent measurements from Belle II and LHCb using the BESIII value.
| Session | Quark and Lepton Flavour Physics |
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