Infrared Gluon Propagator from lattice QCD: Results from large asymmetric lattices

Silva, P.J.; Oliveira, O.

doi:10.1103/PhysRevD.74.034513

Infrared Gluon Propagator from lattice QCD: Results from large asymmetric lattices

P.J. Silva
(
- Coimbra U.
)
,
O. Oliveira
(
- Coimbra U.
)

Nov, 2005

10 pages

Published in:

Phys.Rev.D 74 (2006) 034513

e-Print:

hep-lat/0511043 [hep-lat]

DOI:

10.1103/PhysRevD.74.034513

View in:

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Abstract:

The infrared limit of the lattice Landau gauge gluon propagator is studied. We show that the lattice data is compatible with the pure power law

(q^2)^{2 \kappa}

solution of the Dyson-Schwinger equations. Using various lattice volumes, the infinite volume limit for the exponent

\kappa

is measured. Although, the results allow

\kappa = 0.498 - 0.525

, the lattice data favours

\kappa \sim 0.52

, which would imply a vanishing zero momentum gluon propagator.

12.38.Aw
12.38.-t
11.15.Ha
14.70.Dj
gauge field theory: SU(3)
lattice field theory
gluon: propagator
Landau gauge
Dyson-Schwinger equation
numerical calculations: Monte Carlo

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