2002/06/30 by Ming Zhong, M. Zhong, Yue-Liang Wu +3 · 19 citations
Physics and Astronomy · #B meson #Branching fraction #Cabibbo–Kobayashi–Maskawa matrix #Effective field theory #Heavy quark effective theory #High-Energy Particle Collisions Research #Lepton #Light cone #Matrix (chemical analysis) #Meson #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Semileptonic decay #hep-ph
paper · pdf · doi:10.1142/s0217751x03013661
published in International Journal of Modern Physics A 18(11), 1959-1989 (World Scientific) · 23 pages, Revtex, 32 figures, published version with the errors of numerical results caused by the computer program are corrected
arxiv created 2002/11/11 · openalex publication_date 2003/04/30 · arxiv updated 2014/11/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
B meson rare decays ([Formula: see text] and B → K* γ) are analyzed in the framework of effective field theory of heavy quarks. The semileptonic and penguin type form factors for these decays are calculated by using the light cone sum rules method at the leading order of 1/m Q expansion. Four exact relations between the two types of form factors are obtained at the leading order of 1/m Q expansion. In particular, the relations are found to hold for the whole momentum transfer region. We also investigate the validity of the relations resulting from the large energy effective theory based on the general relations obtained in the present approach. The branching ratios of the rare decays are presented and their potential importance for extracting the CKM matrix elements and probing new physics is emphasized.