2008/10/20 by Ezequiel Alvarez, Alvarez, Ezequiel, Leandro Da Rold +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.0810.3463
Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 4 pages, 5 figures
arxiv created 2008/10/20 · arxiv updated 2009/12/01
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.