August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【324】Measurement of the Branching Fraction and Kinematic Variables of B0 -> D*- l+ nu_l using the Belle II data

Sep 1, 2021, 3:15 PM
Room B

Room B

Talk Nuclear, Particle- and Astrophysics (FAKT - TASK) Nuclear, Particle- & Astrophysics


Daniel Dorner (Austrian Academy of Sciences (AT))


The goal of this analysis is to make a precise measurement of the magnitude of the element |$V_{cb}$| of the Cabibbo–Kobayashi–Maskawa matrix based on B-decays to the exclusive final state $D^{*-} l^+ \nu_l$. We will explain how this new measurement addresses several limitations of previous determinations and will help to clarify the experimental status of |$V_{cb}$|. The first steps are to measure the branching fraction and kinematic variables of the decay -- preliminary results will be presented. This analysis is based on the data recorded by the Belle II experiment at the SuperKEKB collider.

Primary author

Daniel Dorner (Austrian Academy of Sciences (AT))

Presentation materials