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arxiv 2211.12284 v1 pith:7XVP2CDW submitted 2022-11-22 hep-ph hep-th

Anshika Bansal , Namit Mahajan , Dayanand Mishra This is my paper · ORCID
classification hep-phhep-th
keywords schemeregularisationfieldtheorydenominatorgammahorowitzquantum
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abstract

Recently \cite{Horowitz:2022rpp,Horowitz:2022uak}, denominator regularisation (Den. Reg.) scheme has been proposed to handle divergences in quantum field theory. It is shown to yield results as simple as in dimensional regularisation scheme and also shown to be compatible with minimal subtraction scheme by taking several examples in field theory. In this article, we point out some interesting features of this regularisation scheme which appear as a consequence of the requirement of gauge invariance by revisiting QED vacuum polarisation and $H\to\gamma\gamma$ decay in this regularisation scheme.

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    An extended η-regularisation formalism unifies dimensional, denominator, and Schwinger-proper-time regularisation as solutions of gauge consistency conditions, and reproduces the chiral anomaly when implemented with t...

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