Eur. Phys. J. A 12, 161-167 (2001)
Determination of nonlinear model parameters in the relativistic mean-field theory by nuclear-matter propertiesK.C. Chung1, C.S. Wang1, 2, A.J. Santiago1 and J.W. Zhang2
1 Instituto de Física, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20559-900, Brazil
2 Department of Technical Physics, Peking University, Beijing 100871, PRC
(Received: 27 June 2001 / Revised version: 5 October 2001 Communicated by A. Molinari)
The parameters of the -- model in the relativistic mean-field theory with nonlinear -meson self-interaction are determined by nuclear-matter properties, which are taken as those extracted by fits to data based on nonrelativistic nuclear models. The values of the relevant parameters are , , , , , and the -meson mass MeV, while the value of the calculated nuclear- surface thickness is fm. The field system is shown to be stable, since the -meson self-interaction energy is a lower bound in this whole parameter region with positive c. On the other hand, the effective nucleon mass M* is larger than 0.73M, if the symmetry incompressibility Ks is assumed to be negative and the nuclear-matter incompressibility K0 is kept less than 300 MeV.
21.65.+f - Nuclear matter.
24.10.Jv - Relativistic models.
© Società Italiana di Fisica, Springer-Verlag 2001