Scaling, asymptotic scaling, and Symanzik improvement: Deconfinement temperature in SU(2) pure gauge theory

Journal Article · Sat Jan 01 00:00:00 EST 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.511· OSTI ID:5433515

Cella, G; Curci, G; Tripiccione, R; Vicere, A ^[1]

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1. Dipartimento di Fisica dell'Universita di Pisa, and, Istituto Nazionale di Fisica Nucleare, I-56126 Pisa (Italy)

We report on a high statistics simulation of SU(2) pure gauge field theory at finite temperature, using the Symanzik action. We determine the critical coupling for the deconfinement phase transition on lattices up to 8[times]24, using finite size scaling techniques. We find that the pattern of asymptotic scaling violation is essentially the same as the one observed with conventional, not improved action. On the other hand, the use of effective couplings defined in terms of plaquette expectation values shows a precocious scaling, with respect to an analogous analysis of data obtained by the use of the Wilson action, which we interpret as an effect of improvement.

• OSTI ID: 5433515
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 49:1; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
UNIFIED GAUGE MODELS
CONFINEMENT
SCALING
SU-2 GROUPS
ASYMPTOTIC SOLUTIONS
COUPLING
DATA ANALYSIS
EXPECTATION VALUE
PHASE TRANSFORMATIONS
VIOLATIONS
LIE GROUPS
MATHEMATICAL MODELS
PARTICLE MODELS
SU GROUPS
SYMMETRY GROUPS
662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)
662230 - Quantum Chromodynamics- (1992-)