Quantum field theory can be UV finite if it is taken as effective one

TL;DR

This paper presents a new, simple renormalization method for quantum field theory that can make it UV finite when viewed as an effective theory, applicable across various dimensions.

Contribution

It introduces a novel renormalization approach that simplifies the process and extends applicability to non-renormalizable theories in any spacetime dimension.

Findings

The new approach is physically motivated and efficient.

It can render QFT UV finite as an effective theory.

Applicable to both renormalizable and non-renormalizable theories.

Abstract

This is a further explanation of a new and simple renormalization approach recently proposed by the author (hep-th/9708104, Ref. [1], that is somewhat sketchy) for any ordinary QFT (whether renormalizable or not) in any spacetime dimension. We discussed the physical motivations of the new approach and its efficiency when compared to the existent renormalization approaches. Some other important issues related are briefly touched.