Published April 1995 | Version v1
Journal article Metadata-only

Topological density and instantons on a lattice

Creators

  • 1. Ohio State Univ., Columbus, OH (United States). Dept. of Physics
  • 2. T-8 Group, MS B285, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

Description

We present an update on the study of topological structure of QCD. Issues addressed include a comparison between the plaquette and the geometric methods of calculating the topological density. We show that the improved gauge action based on √(3) blocking transformation suppresses the formation of topologically charged dislocations with low action. Using a cooling method we identify the instantons' location, estimate their size and density, and calculate the renormalization constant ZQ for the plaquette method. ((orig.))

Additional details

Publishing Information

Journal Title
Nuclear Physics. B, Proceedings Supplements
Journal Volume
42
Journal Page Range
p. 246-248.
ISSN
0920-5632
CODEN
NPBSE7

Conference

Title
12. international symposium on lattice field theory (Lattice-12).
Dates
27 Sep - 1 Oct 1994.
Place
Bielefeld (Germany).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
26064573
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACTION INTEGRAL; COMPARATIVE EVALUATIONS; COOLING; DISLOCATIONS; EXPECTATION VALUE; GEOMETRY; INSTANTONS; LATTICE FIELD THEORY; MAGNETIC SUSCEPTIBILITY; QUANTUM CHROMODYNAMICS; RENORMALIZATION; SU-3 GROUPS; TOPOLOGY; TRANSFORMATIONS; UNIFIED GAUGE MODELS
Descriptors DEC
CONSTRUCTIVE FIELD THEORY; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; EVALUATION; FIELD THEORIES; INTEGRALS; LIE GROUPS; LINE DEFECTS; MAGNETIC PROPERTIES; MATHEMATICAL MODELS; MATHEMATICS; PARTICLE MODELS; PHYSICAL PROPERTIES; QUANTUM FIELD THEORY; QUASI PARTICLES; SU GROUPS; SYMMETRY GROUPS