Excluded-volume model for quarkyonic Matter: Three-flavor baryon-quark Mixture
| Autor: | Kie Sang Jeong, Dyana C. Duarte, Saul Hernandez-Ortiz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Quark
Physics Equation of state Particle physics Nuclear Theory 010308 nuclear & particles physics Degrees of freedom (physics and chemistry) FOS: Physical sciences Charge (physics) 01 natural sciences Baryon Nuclear Theory (nucl-th) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Phenomenological model Gauge theory 010306 general physics Nucleon |
| Popis: | 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. 11 pages, 6 figures, tex command fixed |
| Databáze: | OpenAIRE |
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