Volume 137, Number 3, February 2022
|Number of page(s)||5|
|Section||Nuclear and plasma physics, particles and fields|
|Published online||22 April 2022|
Flavorful vector-like leptons and the lepton-flavor-violating decays Z → lilj
1 Department of Physics, Liaoning Normal University - Dalian 116029, PRC
Received: 5 November 2021
Accepted: 9 February 2022
The singlet and doublet VLS models are one kind of interesting new physics scenarios, which predict the existence of the SU(2)L singlet and doublet vector-like leptons (VLLs), respectively. Taking into account the constraints on these VLS models, we investigate their contributions to the LFV decays . Our numerical results show that, for the singlet VLS model, the values of the branching ratios and can be larger than in a wide range of the parameter space, which might be detected by CEPC/FCC-ee in the near future.
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