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Search for the Rare Decays \(D_s^+\to h^+(h^{0})e^+e^-\)

By Besiii Collaboration and others
Using 7.33~fb\(^{-1}\) of \(e^{+}e^{-}\) collision data collected by the BESIII detector at center-of-mass energies in the range of \(\sqrt{s}=4.128 - 4.226\)~GeV, we search for the rare decays \(D_{s}^+\to h^+(h^{0})e^{+}e^{-}\), where \(h\) represents a kaon or pion. By requiring the \(e^{+}e^{-}\) invariant mass to be consistent with a \(\phi(1020)\), \(0.98<M(e^{+}e^{-})<1.04\) ~GeV/\(c^2\),... Show more
April 9, 2024
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