2008/04/30 by M. Baldo, G. F. Burgio, P. Castorina +4
Earth and Planetary Sciences · Physics and Astronomy · #High-pressure geophysics and materials #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #astro-ph #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.78.063009
published as Phys.Rev.D78:063009,2008 · 7 pages, 5 figures
arxiv created 2008/09/08 · openalex publication_date 2008/09/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We explore the relevance of confinement in quark matter models for the possible quark core of neutron stars. For the quark phase, we adopt the equation of state derived with the field correlator method, extended to the zero temperature limit. For the hadronic phase, we use the microscopic Brueckner-Hartree- Fock many-body theory. We find that the currently adopted value of the gluon condensate G2\ensuremath≃0.006--0.007 GeV4, which gives a critical temperature Tc\ensuremath≃170 MeV, produces maximum masses which are only marginally consistent with the observational limit, while larger masses are possible if the gluon condensate is increased.