QCD thermodynamics with eight staggered quark flavors on a 16 sup 3 times 6 lattice

Journal Article · Thu Oct 15 00:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.3607· OSTI ID:7200516

Kim, S ^[1]; Ohta, S ^[2]

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1. Department of Physics, Columbia University, New York, New York 10027 (United States)
2. The Institute of Physical and Chemical Research (Riken), Wako-shi, Saitama 351-01 (Japan)

The results of our investigations on the finite-temperature phase structure of QCD with eight relatively light dynamical quark flavors on a 16{sup 3}{times}6 lattice are reported. Similar to our previous work on a 16{sup 3}{times}4 lattice, a clear first-order phase transition associated with chiral symmetry is found: by looking at the behavior of the chiral condensate we are able to show the coexistence of two metastable phases at a quark mass {ital m}{sub {ital q}a}=0.05. This suggests that the chiral phase transition grows stronger with an increasing number of quark flavors. On the other hand, we could not find a clear signal for the first-order phase transition with {ital m}{sub {ital q}a}=0.1, suggesting that the transition weakens with an increasing quark mass. These conclusions are also supported by the behavior of the quark and gluon internal energy densities as well as that of the Polyakov line.

• OSTI ID: 7200516
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 46:8; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM CHROMODYNAMICS
LATTICE FIELD THEORY
QUARK MATTER
PHASE TRANSFORMATIONS
CHIRAL SYMMETRY
ENERGY DENSITY
FLAVOR MODEL
GLUONS
MASS
MATHEMATICAL MODELS
RENORMALIZATION
SYMMETRY BREAKING
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
UNIVERSE
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
FIELD THEORIES
MATTER
PARTICLE MODELS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARK MODEL
SYMMETRY
662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)
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Conservation Laws
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