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 111fb-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.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2005). Search for decays of B0→e+e-, B0→μ+μ-, B0→e± μ. PHYSICAL REVIEW LETTERS, 94(22) [10.1103/PhysRevLett.94.221803].

Search for decays of B0→e+e-, B0→μ+μ-, B0→e± μ

CARPINELLI, Massimo;
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 111fb-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.
Articolo in rivista - Articolo scientifico
BABAR detector
English
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2005). Search for decays of B0→e+e-, B0→μ+μ-, B0→e± μ. PHYSICAL REVIEW LETTERS, 94(22) [10.1103/PhysRevLett.94.221803].
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