A Search for the B⁰ → e⁺e^-γ and B⁰ → μ⁺μ^-γ Decays

2006/07/25 by The BABAR Collaboration, The BaBar Collaboration, B. Aubert +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/0607058

14 pages, 9 figures, submitted to ICHEP2006

arxiv created 2006/07/25 · openalex publication_date 2006/07/25 · arxiv updated 2009/12/01 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

With the BaBar detector at the PEP-II asymmetric B Factory at SLAC, we present the first search for the decays B⁰→ℓ⁺ℓ^-γ (l=e, μ). Using a data set of 292 fb^-1 collected at the Υ(4S) resonance, we find no significant signal and set the following branching fraction upper limits at 90% confidence level: B(B⁰→ e⁺e^-γ)<0.7× 10^-7 and B(B⁰→ μ⁺μ^-γ)<3.4× 10^-7.

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