Framework for finite alternative theories to a quantum field theory. II-Unitarity

Details Framework for finite alternative theories to a quantum field theory. II-Unitarity Framework for finite alternative theories to a quantum field theory. II-Unitarity

2003-10-24

arxiv.org/abs/hep-th/0310229v1

Fizika B12 (2003) 275-284

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

We generalized the 't Hooft-Veltman method of unitary regulators to put forward a path-integral framework for finite, alternative theories to a given quantum field theory. And we demonstrated that the proposed framework is feasible by providing a finite alternative to the quantum field theory of a single, self-interacting real scalar field. Here we give two properties of self-energy that make the corresponding scattering matrix unitary. We show that the perturbative self-energy has these two properties at least up to the second order in the coupling constant.

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