Minimal left-right symmetric models and new $Z'$ properties at future electron-positron colliders

Details Minimal left-right symmetric models and new $Z'$ properties at future electron-positron colliders Minimal left-right symmetric models and new $Z'$ properties at future electron-positron colliders

2004-05-03

arxiv.org/abs/hep-ph/0405020v2

Eur.Phys.J.C38:115-122,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1140/epjc/s2004-02028-7

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 $Z'$ 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 $e^+ e^- \longrightarrow \mu^+ \mu^-$. Bounds on $Z'$ masses are estimated.

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