The infrared properties of lattice Landau gauge QCD of SU(3) are studied by measuring gluon propagator, ghost propagator, QCD running coupling and Kugo-Ojima parameter of /3 = 6.0, 164, 244, 324 and p = 6.4, 324, 484 lattices. We study Gribov copy problem by parallel tempering (PT) gauge fixing of p
โฆ LIBER โฆ
Infrared Features of Unquenched Lattice Landau Gauge QCD
โ Scribed by S. Furui; H. Nakajima
- Publisher
- Springer Vienna
- Year
- 2006
- Tongue
- English
- Weight
- 403 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0177-7963
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The infrared behaviour of QCD in the Landau gauge is studied in 244 and 324 lattices by measuring the Kugo-Ojima parameter, gluon propagator, ghost propagator and the QCD running coupling. The Kugo-Ojima parameter c remains about 0.8 instead of the expectation value 1. We observe infrared suppressio