Center vortex model and the G(2) gauge group

Details Center vortex model and the G(2) gauge group Center vortex model and the G(2) gauge group

2010-11-27

arxiv.org/abs/1011.5952v2

AIP Conf.Proc.1343:224-226,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 3 figures; talk given at the conference "Quark Confinement and the Hadron Spectrum IX", Madrid, Spain, 30th of August

Scientific paper

10.1063/1.3574984

The thick center vortex model is applied to G(2) gauge group to obtain the potentials between static sources of the fundamental and adjoint representations. The group G(2) has only one trivial center element and therefore it does not have any vortices which are defined based on non trivial center elements. To obtain the potential from the thick center vortex model, the idea of the vacuum domain structure is used. The intermediate string tensions from this model are in rough agreement with the G(2) lattice results and the Casimir ratio. We argue that the SU(3) subgroup of G(2) may be responsible for the linear potential at the intermediate distances.

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