2006/07/21 by The BABAR Collaboration, R. Barate, B. Aubert +98 · 36 citations
Mathematics · Physics and Astronomy · #Mathematics #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevd.74.051101
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 74(5) (American Physical Society) · 9 pages, 26 postscript figures, submitted to PRD-RC
arxiv created 2006/07/21 · openalex publication_date 2006/09/01 · arxiv updated 2010/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We present measurements of branching fractions of B0 decays to multibody final states containing protons, based on 232\ifmmode×\else\texttimes\fi106 \ensuremathΥ(4S)\ensuremath→BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the branching fractions B(B0\ensuremath→D0pp)=(1.13\ifmmode±\else\textpm\fi0.06\ifmmode±\else\textpm\fi0.08)\ifmmode×\else\texttimes\fi10^\ensuremath-4, B(B0\ensuremath→D*0pp)=(1.01\ifmmode±\else\textpm\fi0.10\ifmmode±\else\textpm\fi0.09)\ifmmode×\else\texttimes\fi10^\ensuremath-4, B(B0\ensuremath→D^\ensuremath-pp\ensuremathπ+)=(3.38\ifmmode±\else\textpm\fi0.14\ifmmode±\else\textpm\fi0.29)\ifmmode×\else\texttimes\fi10^\ensuremath-4, and B(B0\ensuremath→D^*\ensuremath-pp\ensuremathπ+)=(4.81\ifmmode±\else\textpm\fi0.22\ifmmode±\else\textpm\fi0.44)\ifmmode×\else\texttimes\fi10^\ensuremath-4 where the first error is statistical and the second systematic. We present a search for the charmed pentaquark state, \ensuremathΘc(3100) observed by H1 and put limits on the branching fraction B(B0\ensuremath→\ensuremathΘcp\ensuremathπ+)\ifmmode×\else\texttimes\fiB(\ensuremathΘc\ensuremath→D^*\ensuremath-p)<14\ifmmode×\else\texttimes\fi10^\ensuremath-6 and B(B0\ensuremath→\ensuremathΘcp\ensuremathπ+)\ifmmode×\else\texttimes\fiB(\ensuremathΘc\ensuremath→D^\ensuremath-p)<9\ifmmode×\else\texttimes\fi10^\ensuremath-6. Upon investigation of the decay structure of the above four B0 decay modes, we see an enhancement at low pp mass and deviations from phase-space in the Dp and Dp invariant mass spectra.