Correlations between bulk parameters in relativistic and nonrelativistic hadronic mean-field models

Author(s)

Santos, B. M. ^[1] ; Dutra, M. ^[2] ; Lourenco, O. ^[3] ; Delfino, A. ^[1]

Affiliation

^[1] Univ Fed Fluminense, Inst Fis, BR-24210150 Niteroi, RJ - Brazil

^[2] Univ Fed Fluminense, IHS, Dept Ciencias Nat, BR-28895532 Rio Das Ostras, RJ - Brazil

^[3] Univ Fed Sao Carlos, CCA, Dept Ciencias Nat Matemat Educ, BR-13600970 Araras, SP - Brazil

• Document type: Journal article
• Source: Physical Review C; v. 92, n. 1 JUL 20 2015.
• Web of Science Citations: 4

Abstract

In this work, we study the arising of correlations among some isoscalar (K-o, Q(o), and I-o) and isovector (J, L-o, K-sym(o), Q(sym)(o), and I-sym(o)) bulk parameters in nonrelativistic and relativistic hadronic mean-field models. For the former, we investigate correlations in Skyrme and Gogny parametrizations, as well as in the nonrelativistic (NR) limit of relativistic point-coupling models. We provide analytical correlations among bulk parameters for the NR limit, discussing the conditions in which they are linear ones. Based on a recent study {[}Santos et al., Phys. Rev. C 90, 035203 (2014)], we also show that some correlations presented in the NR limit are reproduced for relativistic models presenting cubic and quartic self-interactions in the scalar field sigma, mostly studied in this work in the context of the relativistic framework. We also discuss how the crossing points, observed in the density dependence of some bulk parameters, can be seen as a signature of linear correlations between the specific bulk quantity presenting the crossing and its immediately next order parameter. (AU)

• FAPESP's process: 13/26258-4 - Superdense matter in the universe
• Grantee: Manuel Máximo Bastos Malheiro de Oliveira
• Support type: Research Projects - Thematic Grants