Search for the decay of a B0 or B0bar meson to K*0bar K0 or K*0 K0bar

Abstract

We present a search for the decay of a B0 or B0bar meson to a K*0bar K0 or K*0 K0bar final state, using a sample of approximately 232 million BBbar events collected with the BABAR detector at the PEP-II asymmetric energy e+e- collider at SLAC. The measured branching fraction is B(B0 --> K*0bar K0) + B(B0 --> K*0 K0bar) = (0.2+0.9-0.8+0.1-0.3)x 10-6. We obtain the following upper limit for the branching fraction at 90% confidence level: B(B0 --> K*0bar K0) + B(B0 --> K*0 K0bar) <1.9 x 10-6. We use our result to constrain the Standard Model prediction for the deviation of the CP asymmetry in B0 --> phi K0 from sin(2beta).

14 pages, 6 postscript figures

References in corpus (1)

• The rare decays B --> K(*) anti-K(*) and R-parity violating supersymmetry

Cited by in corpus (9)

• 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
• Flavor symmetry analysis of charmless B --> VP decays
• Observation of $B_s^0\to K^{\ast \pm }{K}^{\mp }$ and evidence for $B_s^0\to K^{\ast -}{\pi }^{+}$ decays
• $B\to K{K}^{\ast }$ Decays in the Perturbative QCD Approach
• Observation of the Rare Decay B0 --> KsK+/-pi-/+
• Search for the decay B+ -> Kbar*0(892) K+
• Measurement of branching fraction and final-state asymmetry for the ${\bar{B}}^0\to K_S^0{K}^{\mp }{\pi }^{\pm }$ decay