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Differential Renormalization of Scalar Field Theory in the Background-Field Method

High Energy Physics - Theory 2007-05-23 v1

Abstract

We introduce an approach for calculating the quantum loop corrections in the ϕ4\phi^4 theory. Differential regularization and background-field method are essential tools and are used to calculate the effective action of the theory to two-loop order. Our approach is considerably simpler than other known methods and can be readily extended to higher-loop calculations and to other models.

Keywords

Cite

@article{arxiv.hep-th/9509164,
  title  = {Differential Renormalization of Scalar Field Theory in the Background-Field Method},
  author = {Yaw-Hwang Chen and Min-Tsung He and Su-Long Nyeo},
  journal= {arXiv preprint arXiv:hep-th/9509164},
  year   = {2007}
}

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12 pages