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Phys. Rev. D 62, 091102(R) (2000) [5 pages]

Search for decays of B0 mesons into pairs of leptons: B0e+e-, B0μ+μ-, and B0e±μ

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T. Bergfeld et al. (CLEO Collaboration)
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Received 19 July 2000; published 2 October 2000

We search for the decay of the B0 meson into a pair of leptons in the suppressed channels B0e+e-, B0μ+μ- and in the lepton number violating channel B0e±μ in a sample of 9.7×106BB̅ pairs recorded by CLEO detector. No signal is found, and the following upper limits on the branching fractions are established: B(B0e+e-)<8.3×10-7, B(B0μ+μ-)<6.1×10-7, B(B0e±μ)<15×10-7 at 90% confidence level. A new lower limit on the Pati-Salam leptoquark mass MLQ>27TeV is established at 90% confidence level.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.091102
DOI:
10.1103/PhysRevD.62.091102
PACS:
13.20.He