PREPRINT
12BC88C9-4608-450C-89FC-649487FD905D

# New Class of Compact Stars at High Density

Eduardo S. Fraga, Robert D. Pisarski, Jurgen Schaffner-Bielich
arXiv:nucl-th/0110077

Submitted on 29 October 2001

## 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.

## Preprint

Comment: Latex, 7 pages, 4 figures. Presented at the International Conference on Statistical QCD, Bielefeld, Germany, 26-30 August 2001. Requires espcrc1.sty

Subjects: Nuclear Theory; Astrophysics; High Energy Physics - Phenomenology