Search for the semi-muonic charmonium decay $J/\psi \to D^{-}{\mu }^{+}{\nu }_{\mu }+c.c.$

Abstract

Using $(10087\pm 44)\times 10^6$ $J/\psi$ events collected with the BESIII detector at the BEPCII $e^{+}{e}^{-}$ storage ring at the center-of-mass energy of $\sqrt{s}=3.097\mathrm{GeV}$, we present a search for the rare semi-muonic charmonium decay $J/\psi \to D^{-}{\mu }^{+}{\nu }_{\mu }+c.c.$. Since no significant signal is observed, we set an upper limit of the branching fraction to be $\mathcal{B}(J/\psi \to D^{-}{\mu }^{+}{\nu }_{\mu }+c.c.)<5.6\times 10^{-7}$ at $90\%$ confidence level. This is the first search for the weak decay of charmonium with a muon in the final state.

arXiv comment19 pages, 5 figures

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Cited by in corpus (4)

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• First lattice QCD calculation of $J/\psi$ semileptonic decay containing $D$ and $D_s$ particles
• Search for the massless dark photon with $D^0\to \omega {\gamma }^{\prime }$ and $D^0\to \gamma {\gamma }^{\prime }$
• Exclusive semileptonic and nonleptonic $J/\psi$ decays