Minimal left-right symmetric models and new $Z^{\prime }$ properties at future electron-positron colliders

Abstract

It was recently shown that left-right symmetric models for elementary particles can be built with only two Higgs doublets. The general consequence of these models is that the left and right fermionic sectors can be connected by a new neutral gauge boson $Z^{\prime }$ having its mass as the only additional new parameter. In this paper we study the influence of the fundamental fermionic representation for this new neutral gauge boson. Signals of possible new heavy neutral gauge bosons are investigated for the future electron-positron colliders at $\sqrt{s}=500$ GeV, 1 TeV and 3 TeV. The total cross sections, forward-backward and left-right asymmetries and model differences are calculated for the process $e^{+}{e}^{-}⟶{\mu }^{+}{\mu }^{-}$. Bounds on $Z^{\prime }$ masses are estimated.

21 pages, 9 figures. Version 2. Submitted to EPJC

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• The muon g-2 in a SU(7) left-right symmetric model with mirror fermions
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• Spontaneous parity violation and minimal Higgs models