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hep-th2017★ 112 cited
Perturbative unitarity of Lee-Wick quantum field theory
Damiano Anselmi, Marco Piva
We study the perturbative unitarity of the Lee-Wick models, formulated as nonanalytically Wick rotated Euclidean theories. The complex energy plane is divided into disconnected reg…
hep-th2017★ 104 cited
A new formulation of Lee-Wick quantum field theory
Damiano Anselmi, Marco Piva
The Lee-Wick models are higher-derivative theories that are claimed to be unitary thanks to a peculiar cancelation mechanism. In this paper, we provide a new formulation of the mod…