Observation of the $W$-Annihilation Decay $D_s^{+}\to \omega {\pi }^{+}$ and Evidence for $D_s^{+}\to \omega K^{+}$

Abstract

We report on the observation of the $W$-annihilation decay $D_s^{+}\to \omega {\pi }^{+}$ and the evidence for $D_s^{+}\to \omega K^{+}$ with a data sample corresponding to an integrated luminosity of 3.19 fb${}^{-1}$ collected with the BESIII detector at the center-of-mass energy $\sqrt{s}=4.178$ GeV. We obtain the branching fractions $\mathcal{B}(D_s^{+}\to \omega {\pi }^{+})=(1.77\pm 0.32_{stat.}\pm 0.11_{sys.})\times 10^{-3}$ and $\mathcal{B}(D_s^{+}\to \omega K^{+})=(0.87\pm 0.24_{stat.}\pm 0.07_{sys.})\times 10^{-3}$, respectively.

References in corpus (11)

• Design and Construction of the BESIII Detector
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Branching ratios and direct CP asymmetries in $D\to PP$ decays
• Two-body hadronic charmed meson decays
• Direct CP violation in two-body hadronic charmed meson decays
• Exclusive event generator for $e^{+}{e}^{-}$ scan experiments
• Branching ratios and direct CP asymmetries in $D\to PV$ decays
• A global analysis of two-body D to VP decays within the framework of flavor symmetry
• The upgrade system of BESIII ETOF with MRPC technology
• Ds+ Exclusive Hadronic Decays Involving omega
• Observation of the Decay $D_s^{+}\to \omega {\pi }^{+}$

Cited by in corpus (8)

• Revisiting CP violation in $D\to PP$ and $VP$ decays
• Study of the Standard Model with weak decays of charmed hadrons at BESIII
• Amplitude analysis of $D_s^{+}\to {\pi }^{+}{\pi }^0\eta$ and first observation of the pure $W$-annihilation decays $D_s^{+}\to a_0(980{)}^{+}{\pi }^0$ and $D_s^{+}\to a_0(980{)}^0{\pi }^{+}$
• Amplitude analysis and branching fraction measurement of $D_s^{+}\to K^{-}{K}^{+}{\pi }^{+}{\pi }^0$
• Search for the Rare Decays $D_s^{+}\to h^{+}(h^0)e^{+}{e}^{-}$
• Study of $D_s^{+}\to f_0(980){\rho }^{+}$ and $\varphi {\pi }^{+}$ decays through $D_s^{+}\to {\pi }^{+}{\pi }^{+}{\pi }^{-}{\pi }^0$
• Evidence for $B^{-}\to D^{\ast \ast 0}{\tau }^{-}\overline{{\nu }_{\tau }}$ decays
• Study of the doubly Cabibbo-suppressed decays $D_s^{+}\to K^{+}{K}^{+}{\pi }^{-}$ and $D_s^{+}\to K^{+}{K}^{+}{\pi }^{-}{\pi }^0$