Rediscovery of $\Bz\to\jpsi\KL$ at Belle II

Sumitted to PubDB: 2021-06-24

Category: Conference papers and plots, Visibility: Public

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Authors
Non-Belle II authors	Belle II Collaboration
Date	2021-06-23
Belle II Number	BELLE2-CONF-PH-2021-009
Abstract	We present preliminary results on the reconstruction of the \bjpsikl decay, where $\jpsi\to\mumu$ or \epem. Using a dataset corresponding to a luminosity of $62.8\pm0.6\invfb$ collected by the Belle II experiment at the SuperKEKB asymmetric energy \epem collider, we measure a total of $267\pm21$ candidates with $\jpsi\to\mumu$ and $226\pm20$ with with $\jpsi\to\epem$. The quoted errors are statistical only.