000002662 001__ 2662 000002662 005__ 20210910171644.0 000002662 037__ $$aBELLE2-TALK-CONF-2021-098 000002662 041__ $$aeng 000002662 088__ $$aBELLE2-TALK-DRAFT-2021-115 000002662 100__ $$aManca Mrvar 000002662 245__ $$aA_FB measurements in semileptonic decay at Belle II 000002662 260__ $$aAnomalies and Precision in the Belle II era workshop$$c2021-09-06 000002662 300__ $$amult. p 000002662 520__ $$aIn this talk, we illustrate the motivation for measurements of A_FB observable in semileptonic decays. At first, we present the results of the Belle measurement: A_FB in B^0 \to D^* \ell \nu decay. The results are a good motivation for measuring the same parameter with larger and more precise data sample. Thus, we discuss the prospects for measurement with Belle II data. The preliminary results of Belle II analysis are presented as well. 000002662 8560_ $$fdjaffe@bnl.gov 000002662 8564_ $$uhttps://docs.belle2.org/record/2662/files/BELLE2-TALK-CONF-2021-098.pdf