Search for decays of B0B^0 \to mesons into e+ee^{+} e^{-}, μ+μ\mu^{+} \mu^{-}, and e±μe^\pm \mu^\mp final states

Collaboration
Dec, 2007
8 pages
Published in:
  • Phys.Rev.D 77 (2008) 032007
e-Print:
Report number:
  • BABAR-PUB-07-057,
  • SLAC-PUB-13040
Experiments:

Citations per year

2008201220162020202402468
Abstract: (arXiv)
We present a search for the decays B0 --> e+e-, B0 --> mu+ mu- and B0 --> e mu using data collected with the BABAR detector at the PEP-II e+e-collider at SLAC. Using a dataset corresponding to 384 x 10^6 BBbar pairs, we do not find evidence of any of the three decay modes. We obtain upper limit on the branching fractions, at 90% confidence level, of B(B0 --> e+e-)< 11.3 x 10^{-8}, B(B0 --> mu+ mu-) < 5.2 x 10^{-8}, and B(B0 --> e mu) < 9.2 x 10^{-8}.
Note:
  • 8 pages, 14 postscript figures
  • 13.20.He
  • 14.40.Nd
  • electron positron: colliding beams
  • electron positron: annihilation
  • Upsilon(10570): electroproduction
  • B: pair production
  • B0: leptonic decay
  • B0: rare decay
  • B0: branching ratio
  • BaBar
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