Improved Epstein-Glaser renormalization in x-space versus differential renormalization

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書目詳細資料
Autores:	Gracia Bondía, José M., Gutiérrez Garro, Heidy, Várilly Boyle, Joseph C.
格式:	artículo original
Fecha de Publicación:	2014
實物特徵:	Renormalization of massless Feynman amplitudes in x-space is reexamined here, using almost exclusively real-variable methods. We compute a wealth of concrete examples by means of recursive extension of distributions. This allows us to show perturbative expansions for the four-point and two-point functions at several loop order. To deal with internal vertices, we expound and expand on convolution theory for log-homogeneous distributions. The approach has much in common with differential renormalization as given by Freedman, Johnson and Latorre; but differs in important details.
País:	Kérwá
機構:	Universidad de Costa Rica
Repositorio:	Kérwá
語言:	Inglés
OAI Identifier:	oai:kerwa.ucr.ac.cr:10669/90306
在線閱讀:	https://www.sciencedirect.com/science/article/pii/S0550321314002375 https://hdl.handle.net/10669/90306
Palabra clave:	RENORMALIZATION MATHEMATICS PHYSICS