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By analyzing a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collision data taken at $sqrt s= 3.773~rm GeV$ and 106.41$times 10^{6}$ $psi(3686)$ decays taken at $sqrt s= 3.686~rm GeV$ with the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for $psi(3770)togammachi_{c0}$ to be ${mathcal B}(psi(3770)togammachi_{c0})=(6.88pm0.28pm0.67)times 10^{-3}$ and $Gamma[psi(3770)togammachi_{c0}]=(187pm8pm19)~rm keV$, respectively. These are the most precise measurements to date.
Analyzing $(448.1pm2.9)times10^6$ $psi(3686)$ events collected with the BESIII detector at the BEPCII collider, the $psi(3686)to omega K_{S}^{0}K_{S}^{0}$ decay is observed for the first time. The branching fraction for this decay is determined to be
With $1.06times 10^8$ $psi(3686)$ events collected with the BESIII detector, the branching fraction of $psi(3686) to omega K^+ K^-$ is measured to be $(1.54 pm 0.04 pm 0.11) times 10^{-4}$. This is the most precise result to date, due to the largest
We report the final results of a study of the psi(3770) meson using a data sample collected with the KEDR detector at the VEPP-4M electron-positron collider. The data analysis takes into account the interference between the resonant and nonresonant $
The $B_s^0to J/psi K_S^0$ branching fraction is measured in a data sample corresponding to 0.41$fb^{-1}$ of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to the penguin contributions affecting the sin2$b
We report a measurement of the branching fraction of $psi(3770)togammachi_{c1}$ and search for the transition $psi(3770)rightarrow gamma chi_{c2}$ based on 2.92~fb$^{-1}$ of $e^+e^-$ data accumulated at $sqrt{s}=3.773$~GeV with the BESIII detector at