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

Marijan Ribaric; Luka Sustersic

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arXiv · hep-th/0310229

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

Marijan Ribaric·Luka Sustersic

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Abstract

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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Marijan Ribaric, Luka Sustersic. 2003-10-24. Framework for finite alternative theories to a quantum field theory. II-Unitarity. https://arxiv.org/abs/hep-th/0310229

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