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Updated: Aug 22, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Signals of confinement in Green functions of SU(2) Yang-Mills theory
Jochen Gattnar1, Kurt Langfeld, Hugo Reinhardt
1Insitut für Theoretische Physik, Universität Tübingen, D-72076, Germany.
Abstract:
It has been well established that the removal of center vortices from SU(2) lattice configurations results in the loss of confinement. The running coupling constant, gluon form factor, and ghost form factor are studied in the Landau gauge for the full and the vortex removed theory. In the latter case, a strong suppression of the running coupling constant and the gluon form factor at low momenta is observed, and the IR singularity of the ghost form factor disappears. Hence, the removal of the vortices generates a theory for which Zwanziger's horizon condition for confinement is no longer satisfied.
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