Dlν̄l at BABAR
نویسندگان
چکیده
Based on a data sample of 81.7 fb collected at the Υ(4S) resonance with the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC, we present the current status of the measurement of the branching fraction of Υ(4S) → BB̄. Our study of the decay was performed through the exclusive decays B̄ → D∗+l−ν̄l using a partial reconstruction method, where the D ∗+ is detected only through the soft pion daughter from the decay D → Dπ.
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