Search for rare electroweak decay B+→K+νν in early Belle II dataset

Sumitted to PubDB: 2021-05-28

Category: Talk, Visibility: Public

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Authors	Cyrille Praz
Date	2021-05-24
Belle II Number	BELLE2-TALK-CONF-2021-036
Abstract	An analysis of the B+→K+νν decay mode using 63~fb−1 of Υ(4S) data collected during the 2019 and 2020ab run by the Belle II experiment is reported. A new inclusive tagging method is used to enhance sensitivity to this rare process. The method is validated with dedicated samples including 9.2 fb−1 of data taken off resonance.
Conference	PHENO 2021