Forward-Backward Asymmetries of Fourth Family Fermions Through the Z' Models at Linear Colliders

Details Forward-Backward Asymmetries of Fourth Family Fermions Through the Z' Models at Linear Colliders Forward-Backward Asymmetries of Fourth Family Fermions Through the Z' Models at Linear Colliders

2011-08-14

arxiv.org/abs/1108.2908v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 8 figures

Scientific paper

We investigate the forward-backward asymmetries in the pair production of fourth family fermions through the new Z' interactions in the e^{+}e^{-} collisions. The Z' boson having family universal couplings can contribute to the pair production of fourth family fermions via the s-channel exchange. The linear colliders provide a clean environment for the physics of Z' boson to measure its couplings precisely. The effects of the Z' boson to the asymmetries are shown to be important in some parameter regions for different Z' models. The sensitivities to the family universal couplings has been estimated for different collider energies and projected luminosities.

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