Constraints on left-right symmetric models from the process $b \rightarrow s γ$

Details Constraints on left-right symmetric models from the process $b \rightarrow s γ$ Constraints on left-right symmetric models from the process $b \rightarrow s γ$

1993-12-20

arxiv.org/abs/hep-ph/9312315v1

Phys.Lett.B333:196-201,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

in LaTeX, 12 pages + 4 figures (available on request), BA-93-69, UT-662

Scientific paper

10.1016/0370-2693(94)91029-4

In left-right symmetric models, large contributions to the decay amplitude $b \rightarrow s+ \gamma$ can arise from the mixing of the $W_L$ and $W_R$ 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 $W_L-W_R$ mixing angle $\zeta$ and the mass of the charged Higgs boson $m_{H^\pm}$. Significant departures from the standard model predictions occur when $|\zeta| > 0.003$ and/or when $m_{H^\pm} < $ a few TeV.

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