Top Rare Decays t-> cV in the Mirror Twin Higgs Models

Abstract

The decay t -> c V (V=γ, Z, g) process in the mirror twin Higgs models with the colorless top partners are studied in this paper. We found that the branching ratios of these decays can in some parameter spaces alter the standard model expectations greatly and may be detectable according to the currently precision electroweak measurements. Thus, the constraints on the model parameters may be obtained from the branching fraction of the decay processes, which may serve as a robust detection to this new physics model.

arXiv comment16 pages, 4 figures. To appear in Chin. Phys. C

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