Quarkonium and charm at Belle II

Sumitted to PubDB: 2023-05-08

Category: Proceeding, Visibility: Public

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Authors	Michel Bertemes
Date	May 7, 2023
Belle II Number	BELLE2-CONF-PROC-2023-013
Abstract	We present recent results from the Belle II experiment related to quarkonium and charm physics. With data samples collected by Belle II during special operations of the SuperKEKB collider above the $\Upsilon(4S)$ resonance, we study the processes $e^+e^- \to \omega\chi_{bJ}(1P)$ ($J=0$, 1, or 2), search for the bottomonium equivalent of the X(3872) and measure the exclusive cross sections of $e^+e^- \to B\bar{B}$, $B\bar{B}^$ and $B^\bar{B}^*$. We also propose a new algorithm to determine the production flavor of neutral $D$ mesons. Finally, we report on a measurement of the $\Omega_c^0$ lifetime.