Orateur
Mlle
Barbara Storaci
(Nikhef)
Description
The decay mode $B^0_s \to D_s^\pm K^\mp$ allows for one of the theoretically cleanest time dependent measurements of the CKM angle $\gamma$. This contribution reports the observation of this decay mode at LHCb and the measurement of its world best measurement branching fraction relative to the Cabibbo--favoured mode $B^0_s \to D_s^-\pi^+$
based on data sample of 0.37 $\rm fb^{-1}$ proton--proton collisions at $\sqrt{s} = 7$~TeV collected in 2011.
Author
Mlle
Barbara Storaci
(Nikhef)
