2001/08/31 by B. Aubert, D. Boutigny, J.-M. Gaillard +97 · 10 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.87.221802
published as Phys.Rev.Lett.87:221802,2001 · Version as published in Phys. Rev. Lett
openalex publication_date 2001/11/12 · arxiv created 2003/03/27 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We present the results of searches for B decays to charmless two-body final states containing \ensuremathη^\ensuremath' or \ensuremathω mesons, based on 20.7fb^\ensuremath-1 of data collected with the BABAR detector. We find the branching fractions B(B+\ensuremath→\ensuremathη^\ensuremath'K+)\phantom\rule0ex0ex=\phantom\rule0ex0ex(70\ifmmode±\else\textpm\fi8\ifmmode±\else\textpm\fi5)\ifmmode×\else\texttimes\fi10^\ensuremath-6, B(B0\ensuremath→\ensuremathη^\ensuremath'K0)\phantom\rule0ex0ex=\phantom\rule0ex0ex(42_\ensuremath-11+13\ifmmode±\else\textpm\fi4)\ifmmode×\else\texttimes\fi10^\ensuremath-6, and B(B+\ensuremath→\ensuremathω\ensuremathπ+)\phantom\rule0ex0ex=\phantom\rule0ex0ex(6.6_\ensuremath-1.8+2.1\ifmmode±\else\textpm\fi0.7)\ifmmode×\else\texttimes\fi10^\ensuremath-6, where the first error quoted is statistical and the second is systematic. We give measurements of four additional modes for which the 90% confidence level upper limits are B(B+\ensuremath→\ensuremathη^\ensuremath'\ensuremathπ+)<12\ifmmode×\else\texttimes\fi10^\ensuremath-6, B(B+\ensuremath→\ensuremathωK+)<4\ifmmode×\else\texttimes\fi10^\ensuremath-6, B(B0\ensuremath→\ensuremathωK0)<13\ifmmode×\else\texttimes\fi10^\ensuremath-6, and B(B0\ensuremath→\ensuremathω\ensuremathπ0)<3\ifmmode×\else\texttimes\fi10^\ensuremath-6.