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Type: Artigo de periódico
Title: The Coester line in relativistic mean field nuclear matter
Author: Delfino, A.
Malheiro, M.
Timóteo, V. S.
Martins, J. S. Sá
Abstract: The Walecka model contains essentially two parameters that are associated with the Lorentz scalar (S) and vector (V) interactions. These parameters are related to a two-body interaction consisting of S and V, imposing the condition that the two-body binding energy is fixed. We have obtained a set of different values for the nuclear matter binding energies (B N) at equilibrium densities (rhoo). We investigated the existence of a linear correlation between B N and rhoo, claimed to be universal for nonrelativistic systems and usually known as the Coester line, and found an approximate linear correlation only if V - S remains constant. It is shown that the relativistic content of the model, which is related to the strength of V - S, is responsible for the shift of the Coester line to the empirical region of nuclear matter saturation.
Editor: Sociedade Brasileira de Física
Rights: aberto
Identifier DOI: 10.1590/S0103-97332005000100017
Date Issue: 1-Mar-2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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