Fock terms in the quark-meson coupling model
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
19/04/1999
|
Resumo |
The mean field description of nuclear matter in the quark-meson coupling model is improved by the inclusion of exchange contributions (Fock terms). The inclusion of Fock terms allows us to explore the momentum dependence of meson-nucleon vertices and the role of pionic degrees of freedom in matter. It is found that the Fock terms maintain the previous predictions of the model for the in-medium properties of the nucleon and for the nuclear incompressibility. The Fock terms significantly increase the absolute values of the single-particle, four-component scalar and vector potentials, a feature that is relevant for the spin-orbit splitting in finite nuclei. © 1999 Elsevier Science B.V. |
Formato |
313-325 |
Identificador |
http://dx.doi.org/10.1016/S0375-9474(99)00117-7 Nuclear Physics A, v. 650, n. 3, p. 313-325, 1999. 0375-9474 http://hdl.handle.net/11449/65762 10.1016/S0375-9474(99)00117-7 WOS:000080248700005 2-s2.0-0033583385 |
Idioma(s) |
eng |
Relação |
Nuclear Physics A |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |