Anomalous tq\gamma Couplings and Radiative \boldsymbol B Meson Decays

Motivated by the recent ATLAS results in terms of the branching ratios Br(t\rightarrow q\gamma), we consider the effects of the anomalous tq\gamma couplings on the radiative B meson decays \barB\rightarrow X_D \gamma and B\rightarrow V\gamma with V being light vector mesons \rho,\omega,\phi and K^\ast. Comparing with the corresponding experimental measured data, we obtain the constraints on anomalous tq\gamma couplings.