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Quarkyonic Effective Field Theory, Quark-Nucleon Duality and Ghosts

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arxiv 2103.05679 v3 pith:RCHSGKLT submitted 2021-03-09 nucl-th hep-phhep-th

Dyana C. Duarte , Saul Hernandez-Ortiz , Kie Sang Jeong , Larry D. McLerran This is my paper · ORCID
classification nucl-thhep-phhep-th
keywords theoryfieldfieldsghostnucleonsdegreesdensityduality
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We present a field theoretical description of quarkyonic matter consisting of quark, nucleon and ghost fields coupling to mesonic degrees of freedom. The ghosts are present to cancel over-counting of nucleon states that are Pauli blocked by the quark Fermi sea. Such a theory becomes an effective field theory of nucleons at low baryon density, and as such will reproduce nucleonic matter phenomenology. This theory can accommodate chiral symmetry restoration and the dynamical generation of a shell of nucleons at the Fermi surface. It is valid for finite temperature and density. In such a theory, quark-nucleon duality is accomplished by inclusion of ghost fields so that the nucleons extra degrees of freedom, that are beyond those of quarks, are compensated by the ghost fields.

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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. Suppression of dynamical momentum-space shell by chiral symmetry

    nucl-th 2025-09 conditional novelty 6.0 of 10

    In a parity doublet model, self-consistent minimization keeps the quark fraction at zero up to about 8n0, showing quark onset and chiral restoration need not coincide.

  2. Ferromagnetic instabilities in quarkyonic matter

    nucl-th 2025-07 conditional novelty 6.0 of 10

    Quarkyonic neutron matter can turn ferromagnetic below about 5.5 n0, but only with a hand-chosen negative spin-spin interaction constant.

  3. Constraints on the strength of first-order phase transition and its relation to nucleon mass

    nucl-th 2025-05 conditional novelty 4.0 of 10

    Using a parity doublet hadronic model, an NJL quark model, and integral causality constraints, the paper finds that the maximum allowed first-order phase-transition density jump in neutron-star matter decreases as the...

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