2004/12/31 by C. S. Kim, Sechul Oh, Chaehyun Yu · 13 citations
Mathematics · Physics and Astronomy · #Algorithm #Amplitude #Combinatorics #Factorization #High-Energy Particle Collisions Research #Mathematics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Phase (matter) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Tree (set theory) #hep-ph
paper · pdf · doi:10.1016/j.physletb.2005.06.068
published in Physics Letters B 621(3-4), 259-268 (Elsevier BV) · 17 pages, 4 figures, revised version, to appear in Phys. Lett. B
openalex publication_date 2005/07/02 · arxiv created 2005/07/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We analyze the decay processes B → DK, DK^*, Dπ, and Dρin a model-independent way. Using the quark diagram approach, we determine the magnitudes of the relevant amplitudes and the relative strong phase shifts. In order to find the most likely values of the magnitudes and the relative strong phases of the amplitudes in a statistically reliable way, we use the χ2 minimization technique. We find that the strong phase difference between the color-allowed and the color-suppressed tree amplitude can be large and is non-zero at 1 σlevel with the present data. The color-suppressed tree contributions are found to be sizably enhanced. We also examine the validity of factorization and estimate the breaking effects of flavor SU(3) symmetry in B → DK, Dπand in B → DK^*, Dρ.