Measurement of Branching Fractions of Color-Suppressed Decays of the B0bar Meson to D0 pi0, D0 eta, and D0 omega

2002/07/29 by B. Aubert, Aubert, B.
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.hep-ex/0207092

openalex publication_date 2002/07/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We report preliminary results of an experimental investigation of the color-suppressed decays barB⁰ --> D⁰ pi⁰, D⁰ eta, and D⁰ omega. We measure the branching fractions B (barB⁰ --> D⁰ pi⁰) = (2.89 +/- 0.29 (stat.) +/- 0.38 (syst.)) times 10^-4, B (B⁰ → D⁰ η) = (2.41 ± 0.39 (stat.) +/- 0.32 (syst.)) times 10^-4, and B (barB⁰ --> D⁰ omega) = (2.48 +/- 0.40 (stat.) +/- 0.32 (syst.)) times 10^-4. The results are based on (48.8 +/- 0.5) times 10⁶ B B-bar pairs collected with the BaBar detector. The branching fractions of these color-suppressed decays are significantly larger than theoretical expectations based upon factorization.

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