Observation of the Rare Decay B0 --> KsK+/-pi-/+

Abstract

We report an analysis of charmless hadronic decays of neutral B mesons to the final state KsK+/-pi-/+, using a data sample of (465 +/- 5) x 10^6 BB-bar events collected with the BABAR detector at the Y(4S) resonance. We observe an excess of signal events with a significance of 5.2 standard deviations including systematic uncertainties and measure the branching fraction to be BF(B0 --> KsK+/-pi-/+) = (3.2 +/- 0.5 +/- 0.3) x 10^-6, where the uncertainties are statistical and systematic, respectively.

8 pages, 5 postscript figures, published in PRD(RC)

References in corpus (18)

• Dalitz Plot Analysis of B+- --> pi+-pi+-pi-+ Decays
• Observation of B+ --> K0bar K+ and B0 --> K0 K0bar
• Time-dependent amplitude analysis of B0 --> K0S pi+ pi-
• Observation of New Charmless Decays of Bottom Hadrons
• Observation of the Decay B+ --> K+K-pi+
• Improved Measurements of the Branching Fractions for B0 --> pi+pi- and B0 --> K+pi-, and a Search fro B0 --> K+K-
• Measurements of CP-Violating Asymmetries in the Decay B0-->K+K-K0
• Observation of B0 -> K*0 K*0bar and search for B0 -> K*0 K*0
• Observation of B Decays to Two Kaons
• Search for $B^0\to K^{\ast 0}\overline{K}{}^{\ast 0}$, $B^0\to K^{\ast 0}{K}^{\ast 0}$ and $B^0\to K^{+}{\pi }^{-}{K}^{\mp }{\pi }^{\pm }$ Decays
• Search for the highly suppressed decays B- -> K+ pi- pi- and B- -> K- K- pi+
• Branching Fraction Measurements of Charged B Decays to K*+K+K-, K*+pi+K-, K*+K+pi- and K*+pi+pi- Final States
• $B\to K{K}^{\ast }$ Decays in the Perturbative QCD Approach
• Measurements of the Branching Fractions of B0 --> K^*0K+K-, B0 --> K^*0pi+K-, B0 --> K*0K+pi-, and B0 --> K*0pi+pi-
• Search for the decay B+ -> Kbar*0(892) K+
• Search for the decay of a B0 or B0bar meson to K*0bar K0 or K*0 K0bar
• The rare decays B --> K(*) anti-K(*) and R-parity violating supersymmetry
• Search for B0 -> K*+ K*-

Cited by in corpus (14)

• Stochastic thermodynamics, fluctuation theorems, and molecular machines
• 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
• Branching Fractions and Direct CP Violation in Charmless Three-body Decays of B Mesons
• Laura++ : a Dalitz plot fitter
• Comprehensive Study of ${\overline{B}}^0\to K^0({\overline{K}}^0)K^{\mp }{\pi }^{\pm }$ Decays in the Factorization Approach
• Hidden symmetries and equilibrium properties of multiplicative white-noise stochastic processes
• Observation of $B_s^0\to K^{\ast \pm }{K}^{\mp }$ and evidence for $B_s^0\to K^{\ast -}{\pi }^{+}$ decays
• The Laura++ Dalitz plot fitter
• Updated branching fraction measurements of $B_{(s)}^0\to K_{\mathrm{S}}^0{h}^{+}{h}^{\prime -}$ decays
• Measurement of branching fraction and final-state asymmetry for the ${\bar{B}}^0\to K_S^0{K}^{\mp }{\pi }^{\pm }$ decay
• Experimental Results in Charmless Hadronic B Decays from the B Factories
• Charmless three-body decays of b-hadrons