Measurement of the decays B-->phi K and B-->phi K^*

Abstract

We have observed the decays B-->phi K and phi K^* in a sample of over 45 million B mesons collected with the BABAR detector at the PEP-II collider. The measured branching fractions are BF(B^+ --> phi K^+) = (7.7^{+1.6}_{-1.4}+/- 0.8) x 10^{-6}, BF(B^0 --> phi K^0) = (8.1^{+3.1}_{-2.5}+/- 0.8) x 10^{-6}, BF(B^+ --> phi K^{*+}) = (9.7^{+4.2}_{-3.4}+/- 1.7) x 10^{-6}, and BF(B^0 --> phi K^{*0}) = (8.6^{+2.8}_{-2.4}+/- 1.1) x 10^{-6}. We also report the upper limit BF(B^+ --> phi pi^+) < 1.4 x 10^{-6}$ (90% CL).

arXiv comment7 pages, 1 table, 3 figures (4 postscript files), submitted to Physical Review Letters

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• CP Asymmetries in B Decays with New Physics in Decay Amplitudes
• CP Violation and the Role of Electroweak Penguins in Non-leptonic B Decays
• Hadronic Penguin B Decays In The Standard And The Two-Higgs-Doublet Models
• Search for Exclusive Charmless Hadronic B Decays
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