2001/10/26 by B. Aubert, D. Boutigny, J.-M. Gaillard +97 · 7 citations
Physics and Astronomy · #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevlett.88.101805
published as Phys.Rev.Lett.88:101805,2002 · 7 pages, 3 figures, submitted to Physical Review Letters
arxiv created 2001/10/26 · openalex publication_date 2002/02/26 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
The branching fractions of the exclusive decays B0\ensuremath→K*0\ensuremathγ and B+\ensuremath→K*+\ensuremathγ are measured from a sample of (22.74\ifmmode±\else\textpm\fi0.36)\ifmmode×\else\texttimes\fi106 BB decays collected with the BABAR detector at the PEP-II asymmetric e+e^\ensuremath- collider. We find B(B0\ensuremath→K*0\ensuremathγ)\phantom\rule0ex0ex=\phantom\rule0ex0ex[4.23\ifmmode±\else\textpm\fi0.40(stat)\ifmmode±\else\textpm\fi0.22(syst)]\ifmmode×\else\texttimes\fi10^\ensuremath-5, B(B+\ensuremath→K*+\ensuremathγ)\phantom\rule0ex0ex=\phantom\rule0ex0ex[3.83\ifmmode±\else\textpm\fi0.62(stat)\ifmmode±\else\textpm\fi0.22(syst)]\ifmmode×\else\texttimes\fi10^\ensuremath-5 and constrain the CP-violating charge asymmetry to be \ensuremath-0.170<ACP(B\ensuremath→K*\ensuremathγ)<0.082 at 90% C.L.