Constraints on left – right symmetric models from the process b → sγ
نویسنده
چکیده
In left-right symmetric models, large contributions to the decay amplitude b → sγ can arise from the mixing of the WL and WR gauge bosons as well as from the charged Higgs boson. These amplitudes are enhanced by the factor mt/mb compared to the contributions in the standard model. We use the recent CLEO results on the radiative B decay to place constraints on the WL − WR mixing angle ζ and the mass of the charged Higgs boson mH±. Significant departures from the standard model predictions occur when |ζ | > ∼ 0.003 and/or when mH± < ∼ a few TeV.
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