Z(2)-symmetric center vortex model with a first-order deconfinement transition
Abstract
A random vortex world-surface model for the infrared sector of Sp(2) Yang-Mills theory is constructed. The Sp(2) gauge group, while allowing for the same set of center vortex fluxes as the SU(2) gauge group, induces a significantly different dynamics on those vortex fluxes, which manifests itself in a first-order deconfinement phase transition. As shown by the construction presented here, a new vortex effective action term which can be interpreted in terms of a vortex stickiness can be used to drive the deconfinement transition towards first-order behavior. The available data from lattice Sp(2) Yang-Mills theory are reproduced quantitatively and, in addition, predictions for the behavior of the spatial string tension at high temperatures are presented.
Keywords
Cite
@article{arxiv.hep-lat/0610091,
title = {Z(2)-symmetric center vortex model with a first-order deconfinement transition},
author = {M. Engelhardt and B. Sperisen},
journal= {arXiv preprint arXiv:hep-lat/0610091},
year = {2008}
}
Comments
7 pages, parallel talk at LATTICE 2006 (Confinement and Topology)