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Density of states in the quantum-chromodynamic bag model with a nonzero baryon number
Phys. Rev. D 36, 910 – Published 1 August, 1987
DOI: https://doi.org/10.1103/PhysRevD.36.910
Abstract
We generalize the analysis of a quark-gluon plasma to the case of a nonzero baryon number. This is done in the context of a bag model upgraded by perturbative QCD corrections. Massive quarks are ignored in the calculation but the full running coupling constant is implemented by an explicit dependence on the temperature and chemical potentials. First, the thermodynamical properties are examined and, in the case of a system of hadrons, the likelihood of a transition from a quark-gluon plasma to hadronic matter is discussed; next, in view of its probable relevance to models of relativistic nucleus-nucleus collisions, the hadronic density of states is derived by a Laplace inversion of the partition function and its form is discussed.
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