Observation of B^+ -> psi(2S) K^+ and B^0 -> psi(2S) K^*(892)^0 Decays and Measurements of B-Meson Branching Fractions into J/psi and psi(2S) Final States

Details Observation of B^+ -> psi(2S) K^+ and B^0 -> psi(2S) K^*(892)^0 Decays and Measurements of B-Meson Branching Fractions into J/psi and psi(2S) Final States Observation of B^+ -> psi(2S) K^+ and B^0 -> psi(2S) K^*(892)^0 Decays and Measurements of B-Meson Branching Fractions into J/psi and psi(2S) Final States

1998-03-17

arxiv.org/abs/hep-ex/9803013v3

Phys.Rev.D58:072001,1998

Physics

High Energy Physics

High Energy Physics - Experiment

REVTeX, 32 pages, 16 PostScript figures, minor typographical changes for publication

Scientific paper

10.1103/PhysRevD.58.072001

We report the observations of the decays B^+ -> psi(2S) K^+ and B^0 -> psi(2S) K^*(892)^0 in ppbar collisions at a center-of-mass energy of 1.8 TeV using a 110 pb^{-1} data sample recorded by the Collider Detector at Fermilab. We also reconstruct the decays B^+ -> J/psi K^+ and B^0 -> J/psi K^*(892)^0 and measure the six ratios of branching fractions of these four decays. The relative branching-fraction results are shown to be consistent with phenomenological factorization calculations of hadronic B-meson decays. We use the world-average branching fraction Br(B^+ -> J/psi K^+) to derive Br(B^+ -> psi(2S) K^+) = (0.56 +/- 0.08 +/- 0.10) x 10^{-3}, Br(B^0 -> psi(2S) K^*(892)^0) = (0.92 +/- 0.20 +/- 0.16) x 10^{-3}, and Br(B^0 -> J/psi K^*(892)^0) = (1.78 +/- 0.14 +/- 0.29) x 10^{-3}, where the first and second uncertainties are statistical and systematic, respectively.

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