Search for the rare decays $D\to h(h^{\prime })e^{+}{e}^{-}$

Abstract

We search for rare decays of $D$ mesons to hadrons accompany with an electron-positron pair (h(h')$e^{+}{e}^{-}$), using an $e^{+}{e}^{-}$ collision sample corresponding to an integrated luminosity of 2.93 fb${}^{-1}$ collected with the BESIII detector at $\sqrt{s}$ = 3.773 GeV. No significant signals are observed, and the corresponding upper limits on the branching fractions at the $90\%$ confidence level are determined. The sensitivities of the results are at the level of $10^{-5}\sim 10^{-6}$, providing a large improvement over previous searches.

References in corpus (3)

• Observation of the Dalitz Decay ${\eta }^{\prime }\to \gamma e^{+}{e}^{-}$
• Observation of $D^0$ meson decays to ${\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ and $K^{+}{K}^{-}{\mu }^{+}{\mu }^{-}$ final states
• First observation of the decay $D^0\to K^{-}{\pi }^{+}{\mu }^{+}{\mu }^{-}$ in the ${\rho }^0$-$\omega$ region of the dimuon mass spectrum

Cited by in corpus (17)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• STCF Conceptual Design Report: Volume 1 -- Physics & Detector
• Flavor probes of axion-like particles
• Null tests from angular distributions in $D\to P_1{P}_2{l}^{+}{l}^{-}$, $l=e,\mu$ decays on and off peak
• Theoretical and experimental status of rare charm decays
• Disentangling QCD and New Physics in $D^{+}\to {\pi }^{+}{\ell }^{+}{\ell }^{-}$
• Search for the decay $D^0\to {\pi }^0\nu \bar{\nu }$
• Search for lepton-flavor violating decays $D^0\to X^0{e}^{\pm }{\mu }^{\mp }$
• $S$-wave contribution to rare $D^0\to {\pi }^{+}{\pi }^{-}{\ell }^{+}{\ell }^{-}$ decays in the Standard Model and sensitivity to New Physics
• Study of the decay $D^{+}\to K^{\ast }(892{)}^{+}{K}_S^0$ in $D^{+}\to K^{+}{K}_S^0{\pi }^0$
• Charm Physics at the Super $\tau$-Charm Factory
• Search for $D^0$ meson decays to ${\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$ and $K^{+}{K}^{-}{e}^{+}{e}^{-}$ final states
• Observation of $D^{0(+)}\to K_S^0{\pi }^{0(+)}\omega$ and improved measurement of $D^0\to K^{-}{\pi }^{+}\omega$
• Search for the Rare Decays $D_s^{+}\to h^{+}(h^0)e^{+}{e}^{-}$
• Measurement of the $D^0\to K^{-}{\pi }^{+}{e}^{+}{e}^{-}$ branching fraction and search for $D^0\to {\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$ and $D^0\to K^{+}{K}^{-}{e}^{+}{e}^{-}$ decays at Belle
• Rare B, D and K decays, radiative and electroweak penguin decays, including constraints on $V_{td}/V_{ts}$ and ${\epsilon }^{\prime }/\epsilon$: Summary of CKM 2018 working group 3