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Liu, B.; Di Toro, M.; Greco, V.; Shen, C. W.; Zhao, E. G.; Sun, B. X.; Liu, B , Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
Application of density dependent parametrization models to asymmetric nuclear matter
Source PublicationPHYSICAL REVIEW C
KeywordHeavy-ion Collisions Neutron-stars Equation State Flow
AbstractDensity dependent parametrization models of the nucleon-meson effective couplings, including the isovector scalar delta-field, are applied to asymmetric nuclear matter. The nuclear equation of state and the neutron star properties are studied in an effective Lagrangian density approach, using the relativistic mean field hadron theory. It is known that the introduction of a delta-meson in the constant coupling scheme leads to an increase of the symmetry energy at high density and so to larger neutron star masses, in a pure nucleon-lepton scheme. We use here a more microscopic density dependent model of the nucleon-meson couplings to study the properties of neutron star matter and to reexamine the delta-field effects in asymmetric nuclear matter. Our calculations show that, due to the increase of the effective delta coupling at high density, with density dependent couplings the neutron star masses in fact can be even reduced.
2007
ISSN0556-2813
Volume75Issue:4Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5758
CollectionSCI期刊论文
Corresponding AuthorLiu, B , Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Liu, B.,Di Toro, M.,Greco, V.,et al. Application of density dependent parametrization models to asymmetric nuclear matter[J]. PHYSICAL REVIEW C,2007,75(4):-.
APA Liu, B..,Di Toro, M..,Greco, V..,Shen, C. W..,Zhao, E. G..,...&Liu, B , Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China.(2007).Application of density dependent parametrization models to asymmetric nuclear matter.PHYSICAL REVIEW C,75(4),-.
MLA Liu, B.,et al."Application of density dependent parametrization models to asymmetric nuclear matter".PHYSICAL REVIEW C 75.4(2007):-.
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