Use este identificador para citar ou linkar para este item:
http://repositorio.ufla.br/jspui/handle/1/42006
Título: | Multiloop calculations with implicit regularization in massless theories |
Palavras-chave: | Regularization Renormalization Multiloop calculations Implicit Regularization (IR) Regularização Renormalização Cálculo multiloop Regularização implícita (RI) |
Data do documento: | Jun-2010 |
Editor: | Sociedade Brasileira de Física |
Citação: | DIAS, E. W. et al. Multiloop calculations with implicit regularization in massless theories. Brazilian Journal of Physics, São Paulo, v. 40, n. 2, p. 228-234, jun. 2010. |
Resumo: | We establish a systematic way to calculate multiloop amplitudes of infrared safe massless models with Implicit Regularization (IR), with a direct cancelation of the fictitious mass introduced by the procedure. The ultraviolet content of such amplitudes have a simple structure and its separation permits the identification of all the potential symmetry violating terms, the surface terms. Moreover, we develop a technique for the calculation of an important kind of finite multiloop integral which seems particularly convenient to use Feynman parametrization. Finally, we discuss the Implicit Regularization of infrared divergent amplitudes, showing with an example how it can be dealt with an analogous procedure in the coordinate space. |
URI: | http://repositorio.ufla.br/jspui/handle/1/42006 |
Aparece nas coleções: | DFI - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
ARTIGO_Multiloop calculations with implicit regularization in massless theories.pdf | 130,9 kB | Adobe PDF | Visualizar/Abrir |
Este item está licenciada sob uma Licença Creative Commons