Dimensional regularization with non Beta-functions

The most general method to regularize Feynman’s integrals in quantum field theory is Dimensional Regularization, in which the most common way to evaluate the associated integral involves Beta functions. We present a new method to evaluate the integral through the residue theorem. We apply our method...

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Detalles Bibliográficos
Autores: J.D. García-Aguilar, A. Pérez-Lorenzana
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:México
Institución:Centro de Investigación y de Estudios Avanzados del IPN
Repositorio:Redalyc-CINVESTAV
OAI Identifier:oai:redalyc.org:57036862013
Acceso en línea:https://www.redalyc.org/articulo.oa?id=57036862013
Access Level:acceso abierto
Palabra clave:Física, Astronomía y Matemáticas
renormalization
Quantum field theory
radiative corrections
Descripción
Sumario:The most general method to regularize Feynman’s integrals in quantum field theory is Dimensional Regularization, in which the most common way to evaluate the associated integral involves Beta functions. We present a new method to evaluate the integral through the residue theorem. We apply our method to a toy model on universal extra dimensions and show that radiative corrections changes the shiftmass between zero and Kaluza-Klein excited modes.