Constraints on left-right symmetric models from the process b→sγ

1993/12/20 by K. S. Babu, Kazuo Fujikawa, Atsushi Yamada · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0370-2693(94)91029-4

published as Phys.Lett.B333:196-201,1994 · in LaTeX, 12 pages + 4 figures (available on request), BA-93-69, UT-662

arxiv created 1993/12/20 · openalex publication_date 1994/07/01 · arxiv updated 2011/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In left-right symmetric models, large contributions to the decay amplitude b → s+ γ 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 ζ and the mass of the charged Higgs boson m_H^±. Significant departures from the standard model predictions occur when |ζ| > 0.003 and/or when m_H^± < a few TeV.

Citations

• Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes KL-> Formula, K+-> + Formula and K0 Formula0

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