Observation of $D^{0(+)}\to K_S^0{\pi }^{0(+)}\omega$ and improved measurement of $D^0\to K^{-}{\pi }^{+}\omega$

Abstract

By analyzing an $e^{+}{e}^{-}$ annihilation data sample with an integrated luminosity of $2.93\mathrm{f}{\mathrm{b}}^{-1}$ taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions of the hadronic decays $D^0\to K^{-}{\pi }^{+}\omega$, $D^0\to K_S^0{\pi }^0\omega$, and $D^{+}\to K_S^0{\pi }^{+}\omega$ to be $(3.392\pm 0.044_{\mathrm{stat}}\pm 0.085_{\mathrm{syst}})\%$, $(0.848\pm 0.046_{\mathrm{stat}}\pm 0.031_{\mathrm{syst}})\%$, and $(0.707\pm 0.041_{\mathrm{stat}}\pm 0.029_{\mathrm{syst}})\%$, respectively. The accuracy of the branching fraction measurement of the decay $D^0\to K^{-}{\pi }^{+}\omega$ is improved by a factor of seven compared to the world average value. The $D^0\to K_S^0{\pi }^0\omega$ and $D^{+}\to K_S^0{\pi }^{+}\omega$ decays are observed for the first time.

References in corpus (10)

• Study of the Standard Model with weak decays of charmed hadrons at BESIII
• Measurement of the $D\to K^{-}{\pi }^{+}$ strong phase difference in $\psi (3770)\to D^0\overline{D}{}^0$
• Trigger efficiencies at BES III
• Charm CPV: observation and prospects
• First Observation of $D^{+}\to \eta {\mu }^{+}{\nu }_{\mu }$ and Measurement of its Decay Dynamics
• Observation of the semi-muonic decay $D^{+}\to \omega {\mu }^{+}{\nu }_{\mu }$
• Search for the semileptonic decay $D^{0(+)}\to b_1(1235{)}^{-(0)}{e}^{+}{\nu }_e$
• Observation of the Doubly Cabibbo-Suppressed Decay $D^{+}\to K^{+}{\pi }^{+}{\pi }^{-}{\pi }^0$ and Evidence for $D^{+}\to K^{+}\omega$
• Measurements of the absolute branching fractions of $D^{0(+)}\to K\bar{K}\pi \pi$ decays
• Study of BESIII Trigger Efficiencies with the 2018 $J/\psi$ Data

Cited by in corpus (2)

• Measurements of the branching fractions of the inclusive decays $D^0(D^{+})\to {\pi }^{+}{\pi }^{+}{\pi }^{-}X$
• Contributions of $\rho (770,1450)\to \omega \pi$ for the Cabibbo-favored $D\to h\omega \pi$ decays