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Volume 367 - XXIX International Symposium on Lepton Photon Interactions at High Energies (LeptonPhoton2019) - Parallel Sessions
B lifetime and $B^0-\bar B^0$ mixing results from early Belle II data
R. Rasheed* On behalf of the BELLE II collaboration
*corresponding author
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Pre-published on: 2019 October 31
Published on: 2019 December 17
This paper summarizes the first results on $B^0$ lifetime and mixing from early phase 3 Belle II data corresponding to an integrated luminosity of $\int{\textit{L}} = 2.7 fb^{-1}$. It presents two analysis that demonstrate vertexing and tagging capabilities. The first analysis uses partially reconstructed $B^{0} \rightarrow D^{*+}l \nu $ decays combined with an additional high momentum lepton in the rest of the event. The latter one uses fully reconstructed hadronic decay final states $ B^{0} \rightarrow D^{(*)\mp }X^{\pm}$
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