Prospects of |Vub| measurement at Belle II

Sumitted to PubDB: 2022-05-02

Category: Talk, Visibility: Public

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Authors Tommy Martinov
Date April 19, 2022
Belle II Number BELLE2-TALK-CONF-2022-039
Abstract Belle II is a B-factory experiment and thus offers a perfect environment for measuring the CKM-matrix element |Vub|. This measurement is particularly important for a precise test of the unitarity condition. Two types of measurement exist to extract |Vub|, both relying on semi-leptonic decays of B mesons: the exclusive measurements (where a particular u-hadron is reconstructed) and the inclusive measurements (they effectively sum over all possible hadronic final states containing a u-quark). The two methods show a long-standing discrepancy of 3sigma. I will present in this talk the first studies of |Vub| performed at Belle II and I will outline what the prospects are for this measurement.
Conference Flavor at the Crossroads

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