Observation of B0bar --> D0 K0bar and B0bar --> D0 K*0bar decays

Abstract

We report on a search for B0bar --> D0 K(*)0bar decays based on 85 10^6 BBar events collected with the Belle detector at KEKB. The B0bar --> D0 K0bar and B0bar --> D0 K*0bar decays have been observed for the first time with the branching fractions Br(B0bar --> D0 K0bar) = (5.0^{+1.3}_{-1.2}+- 0.6) 10^{-5} and Br(B0bar --> D0 K*0bar) = (4.8^{+1.1}_{-1.0}+- 0.5) 10^{-5}. No significant signal has been found for the B0bar --> D*0 K(*)0bar and B0bar --> D(*)0bar K*0bar decay modes, and upper limits at 90% CL are presented.

arXiv commentsubmitted to Phys. Rev. Lett

References in corpus (5)

• Measurement of the CP-Violating Asymmetry Amplitude sin2beta
• Improved Measurement of Mixing-induced CP Violation in the Neutral B Meson System
• Search for Exclusive Charmless Hadronic B Decays
• Exploring CP Violation with B_d -> D K_s Decays
• A new method for extracting the weak phase gamma from B ---> D K(*) decays

Cited by in corpus (20)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Strong Phases and Factorization for Color Suppressed Decays
• Amplitude analysis of $B^0\to {\bar{D}}^0{K}^{+}{\pi }^{-}$ decays
• On the Measurement of the Unitarity Triangle Angle gamma from B^0 -> DK^{*0} Decays
• Using untagged B^0 -> D K_S to determine gamma
• Instanton induced quark dynamics and the pentaquark
• Measurement of B0bar -> D(*)0 K(*)0bar Branching Fractions
• Measurement of Branching Fractions and Resonance Contributions for B0 -> D0bar K+ pi- and Search for B0 -> D0 K+ pi- Decays
• Rescattering effects in B_{u,d,s}(bar) to D P, D(bar) P decays
• Strong phase shifts and color-suppressed tree amplitudes in B -> D K^(*) and B -> D pi, D rho decays
• Final-State Phases in $B\to$ Baryon-Antibaryon Decays
• Implications of Bbar to D0 h0 Decays on Bbar to D Kbar, Dbar Kbar Decays
• Estimating $r_B^{D\pi }$ as an input to the determination of the CKM angle $\gamma$
• Weak Annihilation Topologies and Final State Interactions in D -> PP Decays
• CP violation in beauty decays
• Extracting the unitarity angle gamma in Bs to D0 h0, D0bar h0 Decays
• Relating Final State Interactions in $B\to D\pi$ and $B\to DK$
• Exploring CP Violation through B Decays