Electroweak precision constraints on the Lee-Wick Standard Model

Details Electroweak precision constraints on the Lee-Wick Standard Model Electroweak precision constraints on the Lee-Wick Standard Model

2008-10-20

arxiv.org/abs/0810.3463v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 4 pages, 5 figures

Scientific paper

We present the constraints on the parameter space of the Lee-Wick Standard Model coming from electroweak precision observables. The model predicts a large positive S and a negative T. We show that it is possible to find some regions in parameter space with a fermionic state as light as 2.4-3.5 TeV. We also propose a simple extension of the model including a fourth generation. In this case it is possible to pass the electroweak constraints with Lee-Wick fermionic masses of order 0.4-1.5 TeV and Lee-Wick gauge masses of order 3 TeV.

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