Publicação: Optimized delta expansion for relativistic nuclear models: Renormalization of vacuum fluctuations
Nenhuma Miniatura disponível
Data
2000-06-01
Autores
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
We use the optimized linear δ expansion and functional methods to study vacuum contributions in nuclear matter up to the lowest non-trivial order which includes exchange terms. We show that well known results (MFT, RHA and HF) can be easily reproduced when appropriate limits are taken. Neglecting vacuum contributions we explicitly show that the δ expansion goes beyond the traditional loop approximation previously used to study two loop vacuum contributions in nuclear matter. We then evaluate and renormalize vacuum exchange contributions showing that they are numerically very large, as predicted by the ordinary loop approximation.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
International Journal of Modern Physics E, v. 9, n. 3, p. 221-247, 2000.