Droplet formation in cold asymmetric nuclear matter in the quark–meson-coupling model
✍ Scribed by G. Krein; D.P. Menezes; M. Nielsen; C. Providência
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 161 KB
- Volume
- 674
- Category
- Article
- ISSN
- 0375-9474
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✦ Synopsis
The quark-meson-coupling model is used to study droplet formation from the liquid-gas phase transition in cold asymmetric nuclear matter. The critical density and proton fraction for the phase transition are determined in the mean field approximation. Droplet properties are calculated in the Thomas-Fermi approximation. The electromagnetic field is explicitly included and its effects on droplet properties are studied. The results are compared with the ones obtained with the NL1 parametrization of the non-linear Walecka model.
📜 SIMILAR VOLUMES
We investigate the effects on mean-field quantities and nuclear pairing in symmetric nuclear matter of the density-dependent effective nucleon-scalar-meson coupling that is obtained in a σ -ω quarkmeson coupling model. We find that the effective coupling strongly modifies mean-field quantities, such
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.