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Flavour-changing Z decays |
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| Authors: | W Buchmüller |
| Institution: | a Institut für Theoretische Physik, Universität Hannover, D-3000, Hannover 1, Fed. Rep. Germany b Deutsches Elektronen-Synchrotron DESY, D-2000, Hamburg, Fed. Rep. Germany Department of Physics, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel |
| Abstract: | We compute neutral Higgs and Z0-boson couplings to quarks in a model with three quark-lepton families and one mirror family. Mixing between ordinary and mirrorquarks leads to flavour-changing couplings which are negligible for the known quarks. However, t-quark couplings are sizeable and the branching ratio for the decay |
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