The Lee Wick Standard Model

Details The Lee Wick Standard Model The Lee Wick Standard Model

2009-08-26

arxiv.org/abs/0908.3872v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, talk presented at Shifmania 2009

Scientific paper

This article reviews some recent work on a version of the standard model (the Lee-Wick standard model) that contains higher derivative kinetic terms that improve the convergence of loop diagrams removing the quadratic divergence in the Higgs boson mass. Naively higher derivative theories of this type are not acceptable since the higher derivative terms either cause instabilities (from negative energies) or a loss of unitarity (from negative norm states). Lee and Wick provided an interpretation for such theories arguing that theories with higher derivative kinetic terms can be unitary and stable if the states associated with the massive propagator poles, that arise from the higher derivatives, have widths and hence decay and are not in the spectrum of the theory.

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