000002989 001__ 2989
000002989 005__ 20220502154544.0
000002989 037__ $$aBELLE2-TALK-CONF-2022-039
000002989 041__ $$aeng
000002989 088__ $$aBELLE2-TALK-DRAFT-2022-066
000002989 100__ $$aTommy Martinov
000002989 245__ $$aProspects of |Vub| measurement at Belle II
000002989 260__ $$aFlavor at the Crossroads$$c2022-04-19
000002989 300__ $$amult. p
000002989 520__ $$aBelle II is a B-factory experiment and thus offers a perfect environment for measuring the CKM-matrix element |Vub|. This measurement is particularly important for a precise test of the unitarity condition. Two types of measurement exist to extract |Vub|, both relying on semi-leptonic decays of B mesons: the exclusive measurements (where a particular u-hadron is reconstructed) and the inclusive measurements (they effectively sum over all possible hadronic final states containing a u-quark). The two methods show a long-standing discrepancy of 3sigma. I will present in this talk the first studies of |Vub| performed at Belle II and I will outline what the prospects are for this measurement.
000002989 8560_ $$fdjaffe@bnl.gov
000002989 8564_ $$uhttps://docs.belle2.org/record/2989/files/BELLE2-TALK-CONF-2022-039.pdf