Sumitted to PubDB: 2018-11-09

Category: Proceeding, Visibility: Public

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Authors	Alessandro Gaz
Date	2018-11-09
Belle II Number	BELLE2-CONF-PROC-2018-024
Abstract	Time dependent CP-violation phenomena are a powerful tool to precisely measure fundamental parameters of the Standard Model and search for New Physics. The Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^{+}{e}^{-}$ collider. The design luminosity of SuperKEKB is $8\times {10}^{35}$ cm${}^{-2}$s${}^{-1}$ and the Belle II experiment aims to record 50 ab${}^{-1}$ of data, a factor of 50 more than the Belle experiment. This dataset will greatly improve the present knowledge, particularly on the CKM angles ${\varphi }_1/\beta$ and ${\varphi }_2/\alpha$ by measuring a wide spectrum of B-meson decays, including many with neutral particles in the final state. A study for the time-dependent analysis of $B^0\to {\pi }^0{\pi }^0$, relevant for the measurement of ${\varphi }_2/\alpha$, and feasible only in the clean environment of an $e^{+}{e}^{-}$ collider, will also be given.

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