Charmless Hadronic B Decays at BABAR

Details Charmless Hadronic B Decays at BABAR Charmless Hadronic B Decays at BABAR

2000-11-10

arxiv.org/abs/hep-ex/0011031v1

Int.J.Mod.Phys. A16S1A (2001) 468-471

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 2 postscript figues, submitted to Proceedings of DPF2000

Scientific paper

10.1142/S0217751X01007236

We present preliminary results of several searches for rare charmless hadronic decays of the B meson using data collected by the BABAR detector at the Stanford Linear Accelerator Center's PEP-II storage ring. We search for the decays h^+h^-, h^+h^-h^+, h^+h^-pi^0, X^0h^+, and X^0 K_S^0, where h = pi or K, and X^0 = eta^prime or omega. In a sample of 8.8 million B-anti-B decays we measure the branching fractions: BF(B^0 --> pi^+pi^-) = (9.3^{+2.6}_{-2.3}^{+1.2}_{-1.4}) x 10^{-6}, BF(B^0 --> K^+pi^-) = (12.5^{+3.0}_{-2.6}^{+1.3}_{-1.7}) x 10^{-6}, BF(B^0 --> rho^-pi^+) = (49 +/- 13^{+6}_{-5}) x 10^{-6}$, and BF(B^+ --> eta^prime K^+) = (62 +/- 18 +/- 8) x 10^{-6}$. We calculate upper limits for the modes without a significant signal.

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