Nuclear 'pasta' phase within density dependent hadronic models
作者： S. S. Avancini , L. Brito , J. R. Marinelli , D. P. Menezes , M. M. W. de Moraes
DOI: 10.1103/PHYSREVC.79.035804
关键词: Nuclear matter 、 Meson 、 Particle physics 、 Isospin 、 Delta baryon 、 Hadron 、 Thomas–Fermi model 、 Nuclear pasta 、 Spinodal 、 Physics 、 Nuclear physics
摘要: In the present paper, we investigate onset of 'pasta' phase with different parametrizations density dependent hadronic model and compare results one usual nonlinear Walecka model. The influence scalar-isovector virtual {delta} meson is shown. At zero temperature, two methods are used, based on coexistent phases other Thomas-Fermi approximation. finite only coexistence method used. npe matter fixed proton fractions in {beta} equilibrium studied. We our restrictions imposed values pressure at inner edge crust, obtained from observations Vela pulsar recent isospin diffusion data heavy-ion reactions, predictions spinodal calculations.
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