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 (30)

• 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
• Future Physics Programme of BESIII
• Measurement of the ${\mathrm{e}}^{+}{\mathrm{e}}^{-}\to {\pi }^{+}{\pi }^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation
• Measurement of Absolute Hadronic Branching Fractions of D Mesons and e^+ e^- --> D D-bar Cross Sections at the psi(3770)
• Study of the Standard Model with weak decays of charmed hadrons at BESIII
• Study of decay dynamics and $CP$ asymmetry in $D^{+}\to K_L^0{e}^{+}{\nu }_e$ decay
• Measurement of the Branching Fraction For the Semi-Leptonic Decays $D^{0(+)}\to {\pi }^{-(0)}{\mu }^{+}{\nu }_{\mu }$ and Test of Lepton Flavor Universality
• Improved measurement of the absolute branching fraction of $D^{+}\to {\bar{K}}^0{\mu }^{+}{\nu }_{\mu }$
• Measurement of the $D\to K^{-}{\pi }^{+}$ strong phase difference in $\psi (3770)\to D^0\overline{D}{}^0$
• Trigger efficiencies at BES III
• Measurement of the absolute branching fraction of $D^{+}\to {\bar{K}}^0{e}^{+}{\nu }_e$ via ${\bar{K}}^0\to {\pi }^0{\pi }^0$
• Charm CPV: observation and prospects
• Improved determination of the $D\to K^{-}{\pi }^{+}{\pi }^{+}{\pi }^{-}$ coherence factor and associated hadronic parameters from a combination of $e^{+}{e}^{-}\to \psi (3770)\to c\bar{c}$ and $pp\to c\bar{c}X$ data
• Contributions to the width difference in the neutral $D$ system from hadronic decays
• Observation of the Semileptonic $D^{+}$ Transition into an Axial-Vector Meson ${\bar{K}}_1(1270{)}^0$
• Observation of $D^{+}\to \eta \eta {\pi }^{+}$ and improved measurement of $D^{0(+)}\to \eta {\pi }^{+}{\pi }^{-(0)}$
• Search for the rare decays $D\to h(h^{\prime })e^{+}{e}^{-}$
• First observation of the decay $D^0\to K^{-}{\pi }^{+}{\mu }^{+}{\mu }^{-}$ in the ${\rho }^0$-$\omega$ region of the dimuon mass spectrum
• First Observation of $D^{+}\to \eta {\mu }^{+}{\nu }_{\mu }$ and Measurement of its Decay Dynamics
• Observation of the semi-muonic decay $D^{+}\to \omega {\mu }^{+}{\nu }_{\mu }$
• Observation of the decay $D^0\to K^{-}{\pi }^{+}{e}^{+}{e}^{-}$
• 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 $D^{+}\to K^{+}\omega$
• $D_s$ Inclusive Decays
• Improved measurements of the absolute branching fractions of the inclusive decays $D^{+(0)}\to \varphi X$
• Measurements of the absolute branching fractions of $D^{0(+)}\to K\bar{K}\pi \pi$ decays
• Observation of $D^{0(+)}\to K_S^0{\pi }^{0(+)}{\eta }^{\prime }$ and improved measurement of $D^0\to K^{-}{\pi }^{+}{\eta }^{\prime }$
• 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