Quark-gluon plasma versus hadron gas. What one can learn from hadron abundances

Journal Article · Fri Apr 01 04:00:00 EST 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.37.1452· OSTI ID:5291099

Lee, K S; Rhoades-Brown, M J; Heinz, U

We use a phenomenological equation of state to describe the phase transition between a hot and dense hadron resonance gas and a quark-gluon plasma. Our analysis covers the entire temperature-baryon density plane. The consequences for the phase diagram of strangeness conservation during nuclear collisions are analyzed. The flavor composition of the quark plasma and an equilibrated hadron resonance gas is studied and compared along the phase transition surface. We emphasize the need to compare systems with equal total baryon number and entropy contents in order to be consistent with the dynamics of the hadronization process and to obtain results relevant to nuclear collisions. From our results we conclude that the flavor composition of the hadronization debris from a quark-gluon plasma formed in a nuclear collision is probably hard to distinguish from that of a chemically equilibrated hadron gas, although in both cases the production level of strange and nonstrange antibaryons will be much higher than observed in proton-proton collisions.

• Research Organization: Physics Department, State University of New York, Stony Brook, New York 11794
• OSTI ID: 5291099
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 37:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653002* -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON NUMBER
BARYON-BARYON INTERACTIONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY SPECTRA
ENTROPY
EQUATIONS
EQUATIONS OF STATE
FLAVOR MODEL
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MATTER
NUCLEAR MATTER
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUARK MATTER
QUARK MODEL
SPECTRA
STRANGENESS
THERMODYNAMIC PROPERTIES