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Excluded-volume model for quarkyonic Matter: Three-flavor baryon-quark Mixture

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arxiv 2003.02362 v3 pith:7N3IKAHV submitted 2020-03-04 nucl-th hep-ph

Dyana C. Duarte , Saul Hernandez-Ortiz , Kie Sang Jeong This is my paper
classification nucl-thhep-ph
keywords modelexcluded-volumehard-softmatterevolutionquarkyonicthree-flavorbaryon-quark
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abstract

The single-flavor excluded-volume model based on the effective size of baryons reproduces the hard-soft density evolution of the equation of state (EoS) required by the recent studies of GW170817. This phenomenological model basically realizes the concept of quarkyonic matter which is introduced from large-$N_{c}$ gauge theory for dense matter. Enhanced nucleon interactions and dynamically generated quark degrees of freedom can reproduce the hard-soft evolution of the EoS. In this paper, we extend the excluded-volume model to a three-flavor system by considering electromagnetic charge and possible weak equilibrium in order to obtain a proper description for the hard-soft behavior of the EoS inferred from the gravitational waves observations.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quarkyonic Stars with Strangeness

    nucl-th 2026-07 conditional novelty 6.0 of 10

    A three-flavor quarkyonic model with octet baryons yields stiffer neutron-star EOS and raises maximum masses, potentially resolving the hyperon puzzle.

  2. Speed of sound peak in two-color dense QCD: confronting effective models with lattice data

    hep-ph 2025-10 conditional novelty 6.0 of 10

    A medium-separated NJL model reproduces the lattice-observed peak in the speed of sound for two-color dense QCD, where conventional cutoff regularization fails.

  3. Quark Phase Space Distributions in Nuclei

    nucl-th 2025-06 conditional novelty 6.0 of 10

    Using Wigner distributions, the authors find that the fraction of baryons with quark phase-space occupancy above the Pauli bound tends to a constant for heavy nuclei, supporting the plausibility of low-momentum suppression.

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