Sum rules and correlations in asymmetric nuclear matter

The neutron and proton single-particle spectral functions in asymmetric nuclear matter fulfill energy-weighted sum rules. The validity of these sum rules within the self-consistent Green's function approach is investigated. The various contributions to these sum rules and their convergence as a...

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Detalhes bibliográficos
Autores: Rios Huguet, Arnau, Polls Martí, Artur, Müther, Herbert
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/11020
Acesso em linha:https://hdl.handle.net/2445/11020
Access Level:acceso abierto
Palavra-chave:Estructura nuclear
Física nuclear
Nuclear structure
Nuclear physics
Descrição
Resumo:The neutron and proton single-particle spectral functions in asymmetric nuclear matter fulfill energy-weighted sum rules. The validity of these sum rules within the self-consistent Green's function approach is investigated. The various contributions to these sum rules and their convergence as a function of energy provide information about correlations induced by the realistic interaction between the nucleons. The study of the sum rules in asymmetric nuclear matter exhibits the isospin dependence of the nucleon-nucleon correlations.