2003/08/31 by Yeo-Yie Charng, Hsiang-nan Li
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/j.physletb.2004.04.083
published as Phys.Lett.B594:185-195,2004 · 11 pages, 4 figures
arxiv created 2004/04/27 · openalex publication_date 2004/06/16 · arxiv updated 2011/04/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We propose a parametrization for two-body nonleptonic B meson decays, in which the various topologies of amplitudes are counted in terms of powers of the Wolfenstein parameter λ∼0.22. The weak phases and the amplitudes are determined by comparing this parametrization with available measurements. It is possible to obtain the phase φ3 from the B→Kπ data up to theoretical uncertainty of O(λ2)∼5%. The recently measured Bd0→π0π0 branching ratio implies a large color-suppressed or penguin amplitude, and that the extraction of the phase φ2 from the B→ππ data may suffer theoretical uncertainty more than the expected one, O(λ2)∼5%.