Center vortex model for the infrared sector of Yang-Mills theory: Topological susceptibility

Apr, 2000
13 pages
Published in:
  • Nucl.Phys.B 585 (2000) 614
e-Print:

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Abstract:
A definition of the Pontryagin index for SU(2) center vortex world-surfaces composed of plaquettes on a hypercubic lattice is constructed. It is used to evaluate the topological susceptibility in a previously defined random surface model for vortices, the parameters of which have been fixed such as to reproduce the confinement properties of SU(2) Yang-Mills theory. A prediction for the topological susceptibility is obtained which is compatible with measurements of this quantity in lattice Yang-Mills theory.
  • gauge field theory: SU(2)
  • lattice field theory
  • vortex
  • susceptibility: topological
  • random surface
  • numerical calculations
  • bibliography
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