We present a search for the decays B0→e+e-, B0→μ+μ-, and B0→e±μ∓ in data collected at the Υ(4S) resonance with the BABAR detector at the SLAC B Factory. Using a data set of 111 fb-1, we find no evidence for a signal in any of the three channels investigated and set the following branching fraction upper limits at the 90% confidence level: B(B0→e+e-)<6.1×10-8, B(B0→μ+μ-)<8.3×10-8, and B(B0→e±μ∓)<18×10-8.
Search for Decays of B0→e+e-, B0→μ+μ-, B0→e±μ∓
MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;SIMI, GABRIELE;
2005
Abstract
We present a search for the decays B0→e+e-, B0→μ+μ-, and B0→e±μ∓ in data collected at the Υ(4S) resonance with the BABAR detector at the SLAC B Factory. Using a data set of 111 fb-1, we find no evidence for a signal in any of the three channels investigated and set the following branching fraction upper limits at the 90% confidence level: B(B0→e+e-)<6.1×10-8, B(B0→μ+μ-)<8.3×10-8, and B(B0→e±μ∓)<18×10-8.File in questo prodotto:
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