Sternbeck, Andre and von Smekal, Lorenz (2010) Infrared exponents and the strong-coupling limit in lattice Landau gauge. EUROPEAN PHYSICAL JOURNAL C, 68 (3-4). pp. 487-503. ISSN 1434-6044,
Full text not available from this repository. (Request a copy)Abstract
We study the gluon gluon ghost propagators of lattice Landau gauge in the strong-coupling limit beta = 0 in pure SU(2) lattice gauge theory to find evidence of the conformal infrared behavior of these propagators as predicted by a variety of functional continuum methods for asymptotically small momenta q(2) << Lambda(2)(QCD). In the strong-coupling limit, this same behavior is obtained for the larger values of a(2)q(2) (in units of the lattice spacing a), where it is otherwise swamped by the gauge-field dynamics. Deviations for a(2)q(2) < 1 are well parameterized by a transverse gluon mass proportional to 1/a. Perhaps unexpectedly, these deviations are thus no finite-volume effect but persist in the infinite-volume limit. They furthermore depend on the definition of gauge fields on the lattice, while the asymptotic conformal behavior does not. We also comment on a misinterpretation of our results by Cucchieri and Mendes (Phys. Rev. D 81:016005, 2010).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DYSON-SCHWINGER EQUATIONS; YANG-MILLS THEORY; GHOST PROPAGATORS; GLUON PROPAGATOR; QUARK CONFINEMENT; BEHAVIOR; QCD; PHYSICS; Strong coupling; Landau gauge; Gluon and ghost propagators; Infrared behavior |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Jul 2020 08:41 |
| Last Modified: | 20 Jul 2020 08:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24379 |
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