2002/11/20 by The BABAR Collaboration, D. Boutigny, B. Aubert +98 · 1 citation
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.90.181803
published as Phys.Rev.Lett.90:181803,2003 · 7 pages, 3 encapsulated postscript figures, submitted to PRL
arxiv created 2002/11/20 · openalex publication_date 2003/05/08 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We report evidence for the decays B0\ensuremath→Ds+\ensuremathπ^\ensuremath- and B0\ensuremath→Ds^\ensuremath-K+ and the results of a search for B0\ensuremath→Ds*+\ensuremathπ^\ensuremath- and B0\ensuremath→Ds^*\ensuremath-K+ in a sample of 84\ifmmode×\else\texttimes\fi106 \ensuremathΥ(4S) decays into BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e^\ensuremath- storage ring. We measure the branching fractions B(B0\ensuremath→Ds+\ensuremathπ^\ensuremath-)=[3.2\ifmmode±\else\textpm\fi0.9(stat)\ifmmode±\else\textpm\fi1.0(syst)]\ifmmode×\else\texttimes\fi10^\ensuremath-5 and B(B0\ensuremath→Ds^\ensuremath-K+)=[3.2\ifmmode±\else\textpm\fi1.0(stat)\ifmmode±\else\textpm\fi1.0(syst)]\ifmmode×\else\texttimes\fi10^\ensuremath-5. We also set 90% C.L. limits B(B0\ensuremath→Ds*+\ensuremathπ^\ensuremath-)<4.1\ifmmode×\else\texttimes\fi10^\ensuremath-5 and B(B0\ensuremath→Ds^*\ensuremath-K+)<2.5\ifmmode×\else\texttimes\fi10^\ensuremath-5.