Evidence that a single mechanism drives the finite-temperature phase transition in full QCD

Journal Article · Fri Jun 15 04:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.3829· OSTI ID:6759502

Gausterer, H ^[1]; Potvin, J ^[2]; Sanielevici, S ^[3]

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1. Institut fuer Theoretische Physik der Universitaet Graz, A-8010 Graz (Austria)
2. Physics Department, Boston University, Boston, MA (USA) Department of Mathematics, Statistics, and Computer Science, Dalhousie University, Halifax, Nova Scotia (Canada)
3. Supercomputer Computations Research Institute, Florida State University, Tallahassee, FL (USA)

We simulate finite-temperature QCD with two flavors of dynamical staggered quarks on a 10{sup 3}{times}4 lattice. Along with the real part of the Polyakov loop and with the chiral condensate, we monitor the behavior of the topological charge across the phase transition. For two different values of the quark mass ({ital ma}=0.2, {ital ma}=0.025) we find good evidence that these observables are equivalent characteristics of the phase in which the theory finds itself. However, the phase transition is clearly steeper for {ital ma}=0.025. Some implications of these results are discussed.

• OSTI ID: 6759502
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:12; ISSN 0556-2821; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARGE DISTRIBUTION
CHIRAL SYMMETRY
COMPOSITE MODELS
DIAGRAMS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR MODEL
GLUONS
INSTANTONS
LATTICE FIELD THEORY
LIE GROUPS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
QUASI PARTICLES
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
TEMPERATURE DEPENDENCE