Volume 367 - XXIX International Symposium on Lepton Photon Interactions at High Energies (LeptonPhoton2019) - Parallel Sessions
First look at time-dependent CP violation using early Belle II data
D. Cervenkov* and  On behalf of the BELLE II collaboration
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Pre-published on: November 25, 2019
Published on: December 17, 2019
Abstract
The Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. In this paper, we report the first steps toward measurement of the time-dependent CP violation parameter for $B^0(\bar B^0)\to J/\psi K^0_S$ using an early Belle II data set. Furthermore, we briefly present a technique to improve $\alpha/\phi_2$ measurement and provide estimates of its uncertainty with the full Belle II data set.
DOI: https://doi.org/10.22323/1.367.0064
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