Investigation of the radiative decay b → sγ in the 3-4-1-1 model

We investigate the branching ratio of the radiative decay b → sγ in the 3-4-1-1 model with arbitrary charge parameters p,q. If the spontaneous breaking of the gauge group symmetry down to the electroweak group is around a few TeVs, the predictions for the branching ratio Br(b → sγ) and meson mixing are consistent with experimental constraints.