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Color confinement in lattice Landau gauge

Mar, 2003

7 pages

Part of Strong coupling gauge theories and effective field theories. Proceedings, International Workshop, SCGT'02, Nagoya, Japan, December 10-13, 2002, 67-73

Contribution to:

2002 International Workshop on Strong Coupling Gauge Theories and Effective Field Theories (SCGT 02), 67-73

e-Print:

hep-lat/0303024 [hep-lat]

DOI:

10.1142/9789812795120_0006

View in:

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Abstract:

The problem of color confinement in lattice Landau gauge QCD is briefly reviewed in the light of Kugo-Ojima criterion and Gribov-Zwanziger theory. The infrared properties of the Landau gauge QCD is studied by the measurement of the gluon propagator, ghost propagator, Kugo-Ojima parameter and the running coupling via

\beta=6.4,32^4,48^4

lattice simulation. The data are analyzed in the principle of minimum sensitivity(PMS) in the

\widetilde{MOM}

scheme. We observe the running coupling

\alpha_s(q)

has a maximum about 1 and decreases near q=0. The Kugo-Ojima parameter, which is expected to be 1 was about 0.8.

Note:

7 pages, 4 figures, SCGT02 conference proceedings, Dec.10-13 2002

talk: Nagoya 2002/12/10
gauge field theory: SU(3)
lattice field theory
gluon: propagator
Landau gauge
ghost: propagator
coupling constant: strong interaction
numerical calculations: Monte Carlo

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Figures(4)

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