Measurements of the branching fractions of charged $B$ decays to $K^{\pm} π^{\mp} π^{\pm}$ final states

9 November 2004

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 70 (9) , 092001
https://doi.org/10.1103/physrevd.70.092001

Abstract

We present results of searches for

B

-meson decays to

K^{+} π^{-} π^{+}

with the BABAR detector. With a data sample of

61.6 \times 10^{6}

B \bar{B}

pairs, we measure the branching fractions and 90% confidence-level upper limits averaged over charge-conjugate states (the first error is statistical and the second is systematic):

B [B^{+} \to K^{* 0} (892) π^{+}] = (15.5 \pm {1.8}_{- 4.0}^{+ 1.5}) \times 10^{- 6}

B [B^{+} \to f_{0} (980) K^{+}, f_{0} \to π^{+} π^{-}] = (9.2 \pm {1.2}_{- 2.6}^{+ 2.1}) \times 10^{- 6}

B [B^{+} \to {\bar{D}}^{0} π^{+}, {\bar{D}}^{0} \to K^{+} π^{-}] = (184.6 \pm 3.2 \pm 9.7) \times 10^{- 6}

B [B^{+} \to ρ^{0} (770) K^{+}] < 6.2 \times 10^{- 6}

and

B [B^{+} \to K^{+} π^{-} π^{+} nonresonant] < 17 \times 10^{- 6}

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Measurements of the branching fractions of chargedBdecays toK±π∓π±final states

Abstract

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Measurements of the branching fractions of charged $B$ decays to $K^{\pm} π^{\mp} π^{\pm}$ final states