Title
From hot lattice QCD to cold quark stars: A quasiparticle approach,Used
Delivery time: 8-12 business days (International)
The work connects the fields of Elementary Particle, Collider and Astrophysics. A thermodynamic model of the quarkgluon plasma using quasiparticle degrees of freedom based on the hard thermal loop selfenergies is introduced. It provides a link between an established quasiparticle model following from the former using a series of approximations and QCD from which the former is derived using the CornwallJackiwTomboulis formalism and a special parametrization of the running coupling. Both models allow for an extrapolation of firstprinciple QCD results available at small chemical potentials using MonteCarlo methods to large net baryon densities with remarkably similar results. They are used to construct equations of state for heavyion collider experiments at SPS and FAIR as well as quark and neutron star interiors. A mixedphase construction allows for a connection of the SPS equation of state to the hadron resonance gas including an extension to the weak sector. From the extrapolation of the most recent lattice results the existence of bound pure quark stars is not suggested. However, quark matter might exist in a hybrid phase in cores of neutron stars.
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