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 r0χ4 = 0.059(3), which corresponds to χ = (191 ± 5 MeV)4 if FK is used to set the scale. Our result supports the Witten-Veneziano explanation for the large mass of the η′.
Del Debbio, L., Giusti, L., Pica, C. (2005). Topological susceptibility for the SU(3) Yang-Mills theory. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 140(March 2005), 603-605 [10.1016/j.nuclphysbps.2004.11.321].
Topological susceptibility for the SU(3) Yang-Mills theory
Giusti, L;
2005
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 r0χ4 = 0.059(3), which corresponds to χ = (191 ± 5 MeV)4 if FK is used to set the scale. Our result supports the Witten-Veneziano explanation for the large mass of the η′.
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