Measurement of decay-time dependent CP violation in B0 → KS0KS0KS0 using 2019--2021 Belle II data

Sumitted to PubDB: 2022-09-21

Category: Conference papers and plots, Visibility: Public

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Authors Koji Hara, Kazutaka Sumisawa, Yutaka Ushiroda
Non-Belle II authors Hikaru Tanigawa
Date Sept. 14, 2022
Belle II Number BELLE2-CONF-PH-2022-007
Abstract We report a measurement of decay-time dependent CP-violating parameters in B0 → KS0KS0KS0 decays. We use (198.0±3.0)×106 \BB pairs collected at the \FourS resonance with the Belle II detector at the SuperKEKB asymmetric-energy e+e collider. The observed mixing-induced and direct \cp violation parameters are \scp=1.86 0.46+0.91 (stat)±0.09 (syst) and \acp=0.22 0.27+0.30 (stat)±0.04 (syst), respectively.

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