Quark matter in the chiral color-dielectric model

Drago, A.; Fiolhais, M.; Tambini, Ubaldo

doi:10.1016/0375-9474(95)00076-d

Cited by 30 publications

(41 citation statements)

References 14 publications

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“…[44], describes reasonably well the nucleon, while giving, with the same set of parameter values, a meaningful equation of state for symmetric quark matter. The Lagrangian of the model reads…”

Section: B the Color Dielectric Modelmentioning

confidence: 81%

“…They have been widely employed in the baryon sector, to calculate the static [27,28,29,30] and dynamic properties [31,32,33,34,35,36] of the nucleon and to describe strange baryons [28,37,38,39]. The CDM has also been applied in the quark sector, to calculate the EOS of quark matter [40,41,42,43,44] and to study the stability of strange quark matter [45]. Applications of the CDM EOS for quark matter to the study of compact stars have been considered by Ghosh et al [46] and by Drago and collaborators, who studied the structure of hybrid stars [47,48] and the problem of supernova explosions [49], and, more recently by Malheiro et al [50,51] to study pure quark stars.…”

Section: B the Color Dielectric Modelmentioning

confidence: 99%

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Hybrid stars with the color dielectric and the MIT bag models

et al. 2004

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We study the hadron-quark phase transition in the interior of neutron stars (NS). For the hadronic sector, we use a microscopic equation of state (EOS) involving nucleons and hyperons derived within the Brueckner-Bethe-Goldstone many-body theory, with realistic two-body and three-body forces. For the description of quark matter, we employ both the MIT bag model with a density dependent bag constant, and the color dielectric model. We calculate the structure of NS interiors with the EOS comprising both phases, and we find that the NS maximum masses are never larger than 1.7 solar masses, no matter the model chosen for describing the pure quark phase.

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Section: B the Color Dielectric Modelmentioning

confidence: 81%

Section: B the Color Dielectric Modelmentioning

confidence: 99%

Hybrid stars with the color dielectric and the MIT bag models

et al. 2004

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“…The role of the QGP in the neutron matter equation of state is examined in [Ro92] and more generally in [Ma93b,Dr95,Ka95,Ri95].…”

Section: B Extrapolation and Connections To Qcdmentioning

confidence: 99%

Recent Progress in Quantum Hadrodynamics

Serot

Walecka

1997

Int. J. Mod. Phys. E

1,000

1,511

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Quantum hadrodynamics (QHD) is a framework for describing the nuclear many-body problem as a relativistic system of baryons and mesons. Motivation is given for the utility of such an approach and for the importance of basing it on a local, Lorentz-invariant lagrangian density. Calculations of nuclear matter and finite nuclei in both renormalizable and nonrenormalizable, effective QHD models are discussed. Connections are made between the effective and renormalizable models, as well as between relativistic mean-field theory and more sophisticated treatments. Recent work in QHD involving nuclear structure, electroweak interactions in nuclei, relativistic transport theory, nuclear matter under extreme conditions, and the evaluation of loop diagrams is reviewed.

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“…Several versions of CDM have been employed to calculate hadronic properties [23]- [29] and quark matter equation of state [30]- [32].…”

Section: Strangelets In the Color Dielectric Modelmentioning

confidence: 99%

Stability of strange quark matter: MIT bag versus color dielectric model

2002

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We discuss the properties of strange matter, in particular the minimum of the energy per baryon number as a function of the strangeness fraction. We utilize both the MIT bag model and the Color Dielectric Model and compare the energy per baryon with the masses of hyperons having the corresponding strangeness fraction, which are coherently calculated within both models. We also take into account the perturbative exchange of gluons. The results obtained in the two approaches allow to discuss the stability of strangelets. While the MIT bag model and the double minimum version of the Color Dielectric Model allow the existence of strangelets, the single minimum version of the Color Dielectric Model excludes this possibility.

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Quark matter in the chiral color-dielectric model

Cited by 30 publications

References 14 publications

Hybrid stars with the color dielectric and the MIT bag models

Hybrid stars with the color dielectric and the MIT bag models

Recent Progress in Quantum Hadrodynamics

Stability of strange quark matter: MIT bag versus color dielectric model

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