2006/08/01 by The BABAR Collaboration, B. Aubert, M. Bóna +98 · 24 citations
Mathematics · Physics and Astronomy · #Branching fraction #Charge (physics) #Combinatorics #Energy (signal processing) #High-Energy Particle Collisions Research #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex
paper · pdf · doi:10.1103/physrevlett.97.201802
published in Physical Review Letters 97(20), 201802 (American Physical Society) · 7 pages, 2 postscript figues, submitted to Physical Review Letters
arxiv created 2006/08/01 · openalex publication_date 2006/11/15 · arxiv updated 2010/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We present measurements of branching fractions and charge asymmetries for the decays B\ensuremath→\ensuremathηK*, where K* indicates a spin 0, 1, or 2 K\ensuremathπ system. The data sample corresponds to 344\ifmmode×\else\texttimes\fi106 BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e^\ensuremath- collider at SLAC. We measure the branching fractions (in units of 10^\ensuremath-6): B(B0\ensuremath→\ensuremathηK*0(892))=16.5\ifmmode±\else\textpm\fi1.1\ifmmode±\else\textpm\fi0.8, B(B+\ensuremath→\ensuremathηK*+(892))=18.9\ifmmode±\else\textpm\fi1.8\ifmmode±\else\textpm\fi1.3, B(B0\ensuremath→\ensuremathη(K\ensuremathπ)0*0)=11.0\ifmmode±\else\textpm\fi1.6\ifmmode±\else\textpm\fi1.5, B(B+\ensuremath→\ensuremathη(K\ensuremathπ)0*+)=18.2\ifmmode±\else\textpm\fi2.6\ifmmode±\else\textpm\fi2.6, B(B0\ensuremath→\ensuremathηK2*0(1430))=9.6\ifmmode±\else\textpm\fi1.8\ifmmode±\else\textpm\fi1.1, and B(B+\ensuremath→\ensuremathηK2*+(1430))=9.1\ifmmode±\else\textpm\fi2.7\ifmmode±\else\textpm\fi1.4. We also determine the charge asymmetries for all decay modes.