New Class of Compact Stars at High Density
Eduardo S. Fraga, Robert D. Pisarski, Jurgen Schaffner-Bielich
Abstract
We discuss the equation of state for cold, dense quark matter in perturbation theory, and how it might match onto that of hadronic matter. Certain choices of the renormalization scale correspond to a strongly first order chiral transition, and may generate a new class of small and very dense quark stars. The results for the mass-radius relation are compatible with the recent determination of the mass and the radius of an isolated neutron star by Pons et al.
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