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

Journal Article · Thu Oct 15 04:00:00 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), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:8; ISSN 0556-2821; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY DENSITY
FIELD THEORIES
FLAVOR MODEL
GLUONS
LATTICE FIELD THEORY
MASS
MATHEMATICAL MODELS
MATTER
PARTICLE MODELS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MATTER
QUARK MODEL
RENORMALIZATION
SYMMETRY
SYMMETRY BREAKING
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
UNIVERSE