Decay constant of $B_s$ and $B_s^{\ast }$ mesons from ${\mathrm{N}}_{\mathrm{f}}=2$ lattice QCD}

Rahul Balasubramanian, Benoît Blossier

We report on a two-flavor lattice QCD estimate of the $B_s$ and $B_s^{\ast }$ leptonic decays parameterized by the decay constants $f_{B_s}$ and $f_{B_s^{\ast }}$. In addition to their relevan…