2004/01/31 by Svjetlana Fajfer, S. Fajfer, T. N. Pham +3 · 6 citations
Chemistry · Mathematics · Physics and Astronomy · #Algorithm #Black Holes and Theoretical Physics #Branching fraction #Chemistry #Crystallography #Factorization #Formalism (music) #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.69.114020
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 69(11) (American Physical Society) · 14 pages, 4 figures, 2 tables
arxiv created 2004/04/08 · openalex publication_date 2004/06/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the decay mechanism in the B^\ensuremath-\ensuremath→\ensuremathφ\ensuremathφK^\ensuremath- decay with the \ensuremathφ\ensuremathφ invariant mass below the charm threshold and in the neighborhood of the \ensuremathηc invariant mass region. Our approach is based on the use of the factorization model and the knowledge of matrix elements of the weak currents. For the B meson weak transition we apply the form factor formalism, while for the light mesons we use effective weak and strong Lagrangians. We find that the dominant contributions to the branching ratio come from the \ensuremathη, \ensuremathη^\ensuremath' and \ensuremathη(1490) pole terms of the penguin operators in the decay chains B^\ensuremath-\ensuremath→\ensuremathη(\ensuremathη^\ensuremath',\ensuremathη(1490))K^\ensuremath-\ensuremath→\ensuremathφ\ensuremathφK^\ensuremath-. Our prediction for the branching ratio is in agreement with the Belle Collaboration's result.