publication . Preprint . 2001

Singular gauge potentials and the gluon condensate at zero temperature

Langfeld, K.; Ilgenfritz, E. -M.; Reinhardt, H.; Schäfke, A.;
Open Access English
  • Published: 12 Oct 2001
Abstract
We consider a new cooling procedure which separates gluon degrees of freedom from singular center vortices in SU(2) LGT in a gauge invariant way. Restricted by a cooling scale $\kappa^4/\sigma^2$ fixing the residual SO(3) gluonic action relative to the string tension, the procedure is RG invariant. In the limit $\kappa \to 0$ a pure Z(2) vortex texture is left. This {\it minimal} vortex content does not contribute to the string tension. It reproduces, however, the lowest glueball states. With an action density scaling like $a^4$ with $\beta$, it defines a finite contribution to the action density at T=0 in the continuum limit. We propose to interpret this a mass...
Subjects
arXiv: High Energy Physics::Lattice
free text keywords: High Energy Physics - Lattice
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