BELLE2-TALK-DRAFT-2023-125 BELLE2-TALK-CONF-2023-127

Semileptonic decays and tests of lepton flavour universality at Belle II

Christoph Schwanda

30 August 2023
21st Lomonosov Conference on Elementary Particle Physics
 (August 24-30, 2023)

Abstract: This presentation reviews the first measurement of R(X) at the Y(4S), the first measurement of R(D*) at Belle II, the tests of light-lepton universality in angular asymmetries of B -> D*lnu, and the test of light-lepton universality in inclusive semileptonic B meson decays. All results are based on 189/fb of Belle II data.

Keyword(s): lepton flavour violation ; semileptonic B decay
Note: 20'

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 Record created 2023-08-31, last modified 2023-08-31


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