Search for decays of B-0 mesons into pairs of leptons: B-0 -> e(+)e(-), B-0 ->mu(+)mu(-), and B-0 -> e(+/-)mu(-/+)

Search for decays of B-0 mesons into pairs of leptons: B-0 -> e(+)e(-), B-0 ->mu(+)mu(-), and B-0 -> e(+/-)mu(-/+)

We search for the decay of the B0 meson into a pair of leptons in the suppressed channels B0→e+e-, B0→μ+μ- and in the lepton number violating channel B0→e±μ∓ in a sample of 9.7×106 BB̄ pairs recorded by CLEO detector. No signal is found, and the following upper limits on the branching fractions are...

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Bibliographic Details
Main Authors: Bergfeld, T, Eisenstein, B, Ernst, J, Gladding, G, Gollin, G, Hans, R, Johnson, E, Karliner, I, Marsh, M, Palmer, M, Plager, C, Sedlack, C, Selen, M, Thaler, J, Williams, J, Edwards, K, Janicek, R, Patel, P, Sadoff, A, Ammar, R, Bean, A, Besson, D, Davis, R, Kwak, N, Zhao, X
Format: Journal article
Published: 2000
Description
Summary:We search for the decay of the B0 meson into a pair of leptons in the suppressed channels B0→e+e-, B0→μ+μ- and in the lepton number violating channel B0→e±μ∓ in a sample of 9.7×106 BB̄ pairs recorded by CLEO detector. No signal is found, and the following upper limits on the branching fractions are established: B(B0→e+e-)<8.3×10-7, B(B0→μ+μ-)<6.1×10 -7, B(B0→e±μ ∓)<15×10-7 at 90% confidence level. A new lower limit on the Pati-Salam leptoquark mass MLQ>27 TeV is established at 90% confidence level. © 2000 The American Physical Society.

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