FRAMEWORK FOR FINITE ALTERNATIVE THEORIES TO A QUANTUM FIELD THEORY.II - UNITARITY

Fizika B (Zagreb)

MARIJAN RIBARI¹ 

关键词: path-integral framework;    finite alternative theories to quantum fieldtheory;    generalized the 't Hooft-Veltman method;    self-interacting real scalar field;    self-energy;   

DOI  :  

学科分类：物理（综合）

来源: Fizika B: a journal of experimental and theoretical physics

【 摘 要 】

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

【 授权许可】

Unknown