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 HAL : in2p3-00167765, version 1
 International Journal of Modern Physics E 12 (2003) 543-554
 Relativistic mean-field approximation with density-dependent screening meson masses in nuclear matter
 (2003)
 The Debye screening masses of the sigma, omega and neutral rho mesons and the photon are calculated in the relativistic mean-field approximation. As the density of the nucleon increases, all the screening masses of mesons increase. A different result with Brown-Rho scaling is shown, which implies a reduction in the mass of all the mesons in the nuclear matter, except the pion. Replacing the masses of the mesons with their corresponding screening masses in the Walecka-1 model, five saturation properties of the nuclear matter are fixed reasonably, and then a density-dependent relativistic mean-field model is proposed without introducing the nonlinear self-coupling terms of mesons.
 Thème(s) : Physique/Physique Nucléaire Théorique
 Mot(s)-clé(s) : Debye screening mass – nuclear matter – relativistic mean-field approximation
 in2p3-00167765, version 1 http://hal.in2p3.fr/in2p3-00167765 oai:hal.in2p3.fr:in2p3-00167765 Contributeur : Emmanuelle Vernay <> Soumis le : Mercredi 22 Août 2007, 16:33:27 Dernière modification le : Jeudi 23 Août 2007, 09:40:44