Abstract
A search for the hadronic decay of a hypothetical resonance S0 in the process e+e−→γ + hadrons at Z0 energies is reported. Particular care is taken to optimise the sensitivity to a scalar resonance decaying into bottom quarks, as expected for Higgs production, e+e−→Z0→H0 γ with\(H^0 \to b\bar b\), in the Standard Model or some of its extensions. No evidence for such a resonance is observed in a sample of about 5 million produced Z0’s. The results are interpreted in terms of models of non-standard Higgs production. An update of a search for a resonance produced in association with hadrons and the subsequent resonance decay into two photons is also presented.
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OPAL Collaboration., Alexander, G., Allison, J. et al. Search for a narrow resonance in Z0 decays into hadrons and isolated photons. Z. Phys. C - Particles and Fields 71, 1–10 (1996). https://doi.org/10.1007/BF02906956
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DOI: https://doi.org/10.1007/BF02906956