2006/04/29 by The BABAR Collaboration, B. Aubert, R. Barate +98 · 76 citations
Physics and Astronomy · #Branching fraction #Dalitz plot #Dark Matter and Cosmic Phenomena #Isobar #Meson #Nuclear physics #Nucleon #Partial wave analysis #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevd.74.032003
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 74(3) (American Physical Society) · 10 pages, 5 figures, to be submitted to Phys. Rev. D
arxiv created 2006/04/29 · openalex publication_date 2006/08/07 · arxiv updated 2010/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We analyze the three-body charmless decay B^\ifmmode±\else\textpm\fi\ensuremath→K^\ifmmode±\else\textpm\fiK^\ifmmode±\else\textpm\fiK^\ensuremath∓ using a sample of 226.0\ifmmode±\else\textpm\fi2.5 million BB pairs collected by the BABAR detector. We measure the total branching fraction and CP asymmetry to be B=(35.2\ifmmode±\else\textpm\fi0.9\ifmmode±\else\textpm\fi1.6)\ifmmode×\else\texttimes\fi10^\ensuremath-6 and ACP=(\ensuremath-1.7\ifmmode±\else\textpm\fi2.6\ifmmode±\else\textpm\fi1.5)%. We fit the Dalitz plot distribution using an isobar model and measure the magnitudes and phases of the decay coefficients. We find no evidence of CP violation for the individual components of the isobar model. The decay dynamics is dominated by the K+K^\ensuremath- S-wave, for which we perform a partial-wave analysis in the region m(K+K^\ensuremath-)<2 GeV/c2. Significant production of the f0(980) resonance, and of a spin zero state near 1.55 GeV/c2 are required in the isobar model description of the data. The partial-wave analysis supports this observation.