Topological susceptibility for the SU(3) Yang--Mills theory
arXiv:hep-lat/0409100 · doi:10.1016/j.nuclphysbps.2004.11.321
Abstract
We present the results of a computation of the topological susceptibility in the SU(3) Yang--Mills theory performed by employing the expression of the topological charge density operator suggested by Neuberger's fermions. In the continuum limit we find r_0^4 chi = 0.059(3), which corresponds to chi=(191 \pm 5 MeV)^4 if F_K is used to set the scale. Our result supports the Witten--Veneziano explanation for the large mass of the eta'.
Talk presented at Lattice2004(topology); 3 pages, 2 figures