Compressible bag model and dibaryon stars

Kagiyama, Shigenori; Nakamura, Akihiro; Omodaká, Toshihiro

doi:10.1007/bf01474728

Cited by 10 publications

(16 citation statements)

References 12 publications

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“…The same effect 79 Herefrom the name "intensity interferometry". was seen in heavy ion reactions [200] and got a similar interpretation in [176] 80 . The interpretation in terms of impact parameter dependence could be checked directly in heavy ion reactions since here the impact parameter can be determined on an event by event basis.…”

Section: The Quantum Statistical Formalismsupporting

confidence: 60%

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Boson interferometry in high-energy physics

2000

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Intensity interferometry and in particular that due to Bose Einstein correlations (BEC) constitutes at present the only direct experimental method for the determination of sizes and lifetimes of sources in particle and nuclear physics. The measurement of these is essential for an understanding of the dynamics of strong interactions which are responsible for the existence and properties of atomic nuclei.Moreover a new state of matter, quark matter, in which the ultimate constituents of matter move freely, is within the reach of present accelerators or those under construction. The confirmation of the existence of this new state is intimately linked with the determination of its space-time properties. Furthermore BEC provides information about quantum coherence which lies at the basis of the phenomenon *

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Section: The Quantum Statistical Formalismsupporting

confidence: 60%

“…The approach of[176] combines simplified (1-d) hydrodynamics with a multiple scattering model, which also exploits the impact parameter dependence.…”

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confidence: 99%

Boson interferometry in high-energy physics

2000

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“…This value for ∆µ B is in agreement with the one used in the literature [11] - [14]. The expression for the energy density ǫ is formally the same given in (2.13), and the total pressure p adquires an additional term ∆p…”

Section: Relativistic Effective Lagrangian For Pointlike Baryonssupporting

confidence: 86%

“…This condition will be labelled as QMCb in what follows. It must be mentioned that a similar condition can be obtained by minimizing the energy density ǫ with respect to the effective bag volume v B , keeping constant the total volume V , namely [11,12] − n B s n B…”

Section: The Quark Meson Coupling Modelmentioning

confidence: 99%

Neutron star structure in a quark model with excluded volume correction

Aguirre

Paoli

2003

Phys. Rev. C

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We study the effects of the finite size of baryons on the equation of state of homogeneous hadronic matter. The finite extension of hadrons is introduced in order to improve the performance of field theoretical models at very high densities. We simulate the in-medium averaged baryon-baryon strong repulsion at very short distances by introducing a Van der Waals like normalization of the fields. This is done in the framework of the Quark Meson Coupling model, that allows to take care of the quark structure of baryons. Since within this model the confinement volume evolves with the fields configuration, the treatment is not equivalent to a simple hard-core potential. We investigate the phase transition to quark matter and the structure of neutron stars. We have found significant corrections at high densities.Comment: 26 pages, 7 Postscript figures, Figures and references added, results unchange

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“…The relevance of the finite extension of nucleons in the evaluation of some nuclear statistical properties has been stressed long time ago [9]. In order to fulfill this assertion, several corrections have been introduced in the hadronic interactions, mainly invoking a Van der Waals-like normalization [10,11,12,13]. The motivation for such a procedure is to parameterize in compact form the strong baryon-baryon repulsion at very short distances.…”

Section: Introductionmentioning

confidence: 99%

Landau parameters for isospin asymmetric nuclear matter based on a relativistic model of composite and finite extension nucleons

Aguirre

Paoli

2007

Phys. Rev. C

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We study the properties of cold asymmetric nuclear matter at high density, applying the quark meson coupling model with excluded volume corrections in the framework of the Landau theory of relativistic Fermi liquids. We discuss the role of the finite spatial extension of composite baryons on dynamical and statistical properties such as the Landau parameters, the compressibility, and the symmetry energy. We have also calculated the low lying collective eigenfrequencies arising from the collisionless quasiparticle transport equation, considering both unstable and stable modes. An overall analysis of the excluded volume correlations on the collective properties is performed.

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Compressible bag model and dibaryon stars

Cited by 10 publications

References 12 publications

Boson interferometry in high-energy physics

Boson interferometry in high-energy physics

Neutron star structure in a quark model with excluded volume correction

Landau parameters for isospin asymmetric nuclear matter based on a relativistic model of composite and finite extension nucleons

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