Speaker
Matteo Fael
(KIT Karlsruhe)
Description
In this talk I will present the recent calculations in perturbative QCD to third order in $\alpha_s$ of the total rate of inclusive semileptonic $B$ decays and the relation between the $\overline{\mathrm{MS}}$ and the kinetic mass of the heavy quarks. Our results have led to a 34% uncertainty reduction in the value of inclusive $|V_{cb}|$. I will furthermore present the $\alpha^3$ correction to the muon decay which will be important input for future reduction of the uncertainty of the Fermi coupling constant $G_F$.
Primary author
Matteo Fael
(KIT Karlsruhe)
