2004/03/29 by The BABAR Collaboration, R. Barate, B. Aubert +98 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevlett.93.181806
published as Phys.Rev.Lett.93:181806,2004 · 7 pages, 1 postscript figure, Presented at the 39th Rencontres de Moriond on QCD and High-Energy Hadronic Interactions, 28 Mar - 4 Apr 2004, La Thuile, Italy. Submitted to Phys. Rev. Lett
arxiv created 2004/03/29 · openalex publication_date 2004/10/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We search for B meson decays into two-body combinations of \ensuremathη,\ensuremathη^\ensuremath',\ensuremathω, and \ensuremathφ mesons from 89\ifmmode×\else\texttimes\fi106 BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e^\ensuremath- collider at SLAC. We find the branching fraction B(B0\ensuremath→\ensuremathη\ensuremathω)=(4.0_\ensuremath-1.2+1.3\ifmmode±\else\textpm\fi0.4)\ifmmode×\else\texttimes\fi10^\ensuremath-6 with a significance of 4.3\ensuremathσ. For the other decay modes we set the following 90% confidence level upper limits on the branching fractions, in units of 10^\ensuremath-6: B(B0\ensuremath→\ensuremathη\ensuremathη)<2.8, B(B0\ensuremath→\ensuremathη\ensuremathη^\ensuremath')<4.6, B(B0\ensuremath→\ensuremathη^\ensuremath'\ensuremathη^\ensuremath')<10, B(B0\ensuremath→\ensuremathη^\ensuremath'\ensuremathω)<2.8, B(B0\ensuremath→\ensuremathη\ensuremathφ)<1.0, B(B0\ensuremath→\ensuremathη^\ensuremath'\ensuremathφ)<4.5, and B(B0\ensuremath→\ensuremathφ\ensuremathφ)<1.5.