Speaker
Florian Herren
(Fermilab)
Description
The forward-backward asymmetry $\mathcal{A}_\mathrm{FB}$ in inclusive $B\rightarrow X l \nu$ decays is an observable with great potential to improve inclusive determinations of $|V_{cb}|$ and to test lepton flavor universality in tree-level charged current decays. In this talk we discuss the advantages of measuring $\mathcal{A}_\mathrm{FB}$ at Belle II employing a cut on the invariant mass of the lepton-neutrino system instead of commonly used cuts on the lepton energies and highlight the impact of particle identification requirements on the interpretation of future determinations of $\mathcal{A}_\mathrm{FB}$.
Author
Florian Herren
(Fermilab)