Trace anomaly, thermal power corrections, and dimension two condensates in the deconfined phase

Journal Article · Tue Sep 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.056005· OSTI ID:21322650

Megias, E; Arriola, E Ruiz; Salcedo, L L ^[1]

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1. Nuclear Theory Group, Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

The trace anomaly of gluodynamics on the lattice shows clear fingerprints of a dimension two condensate above the phase transition. The condensate manifests itself through even powers of the inverse temperature while the total perturbative contribution corresponds to a mild temperature dependence and turns out to be compatible with zero within errors. We try several resummation methods based on a renormalization group improvement. The trace anomaly data are analyzed and compared with other determinations of the dimension two condensate based on the Polyakov loop and the heavy qq free energy, yielding roughly similar numerical values. The role of glueballs near the transition is also discussed.

• OSTI ID: 21322650
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 5; Other Information: DOI: 10.1103/PhysRevD.80.056005; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONDENSATES
CORRECTIONS
FREE ENERGY
GLUEBALLS
LATTICE FIELD THEORY
PHASE TRANSFORMATIONS
RENORMALIZATION
TEMPERATURE DEPENDENCE