Search for the rare decays $J/\psi \to D^0{e}^{+}{e}^{-}+c.c.$ and $\psi (3686)\to D^0{e}^{+}{e}^{-}+c.c.$

Abstract

Using the data samples of $(1310.6\pm 7.2)\times 10^6$ $J/\psi$ events and $(448.1\pm 2.9)\times 10^6$ $\psi (3686)$ events collected with the BESIII detector, we search for the rare decays $J/\psi \to D^0{e}^{+}{e}^{-}+c.c.$ and $\psi (3686)\to D^0{e}^{+}{e}^{-}+c.c.$. No significant signals are observed and the corresponding upper limits on the branching fractions at the $90\%$ confidence level are determined to be $Br(J/\psi \to D^0{e}^{+}{e}^{-}+c.c.)<8.5\times 10^{-8}$ and $Br(\psi (3686)\to D^0{e}^{+}{e}^{-}+c.c.)<1.4\times 10^{-7}$, respectively. Our limit on $Br(J/\psi \to D^0{e}^{+}{e}^{-}+c.c.)$ is more stringent by two orders of magnitude than the previous results, and the $Br(\psi (3686)\to D^0{e}^{+}{e}^{-}+c.c.)$ is measured for the first time.

References in corpus (15)

• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Topcolor Assisted Technicolor
• Search for hadronic transition ${\chi }_{cJ}\to {\eta }_c{\pi }^{+}{\pi }^{-}$ and observation of ${\chi }_{cJ}\to K\bar{K}\pi \pi \pi$
• Study of ${\chi }_{cJ}$ radiative decays into a vector meson
• The transition form factors for semi-leptonic weak decays of $J/\psi$ in QCD sum rules
• Determination of the number of $J/\psi$ events with inclusive $J/\psi$ decays
• Determination of the number of ${\psi }^{\prime }$ event at BESIII
• Search for a light exotic particle in J/psi radiative decays
• Flavor Changing processes in Quarkonium Decays
• Search for the Rare Decays J/Psi --> Ds- e+ nu_e, J/Psi --> D- e+ nu_e, and J/Psi --> D0bar e+ e-
• FCNC-induced semileptonic decays of $J/\psi$ in the Standard Model
• A more exact solution for incorporating multiplicative systematic uncertainties in branching ratio limits

Cited by in corpus (4)

• Observation of the double Dalitz decay ${\eta }^{\prime }\to e^{+}{e}^{-}{e}^{+}{e}^{-}$
• Search for the rare decay of $\psi (3686)\to {\Lambda }_c^{+}\overline{p}{e}^{+}{e}^{-}+c.c.$ at BESIII
• Observation of the Electromagnetic Dalitz Transition $h_c\to e^{+}{e}^{-}{\eta }_c$
• Exclusive semileptonic and nonleptonic $J/\psi$ decays