We present results of a search for the decays B0→ℓ+ℓ-γ (ℓ=e or μ). The search is performed using 320×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the PEP-II B Factory at SLAC. We find no significant signal and set the following branching fraction upper limits at the 90% confidence level: B(B0→e+e-γ)<1. 2×10-7 and B(B0→μ+μ-γ)<1.6×10-7.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2008). Search for the decays B0→e+e-γ and B0→μ+μ-γ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 77(1) [10.1103/PhysRevD.77.011104].

Search for the decays B0→e+e-γ and B0→μ+μ-γ

CARPINELLI, Massimo;
2008

Abstract

We present results of a search for the decays B0→ℓ+ℓ-γ (ℓ=e or μ). The search is performed using 320×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the PEP-II B Factory at SLAC. We find no significant signal and set the following branching fraction upper limits at the 90% confidence level: B(B0→e+e-γ)<1. 2×10-7 and B(B0→μ+μ-γ)<1.6×10-7.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2008
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2008). Search for the decays B0→e+e-γ and B0→μ+μ-γ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 77(1) [10.1103/PhysRevD.77.011104].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389628
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