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

Autor(es)

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

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: Physical Review C; v. 92, n. 1 JUL 20 2015.
• Citações Web of Science: 4

Resumo

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)

• Processo FAPESP: 13/26258-4 - Matéria superdensa no universo
• Beneficiário: Manuel Máximo Bastos Malheiro de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Temático