Topological susceptibility for the SU(3) Yang--Mills theory

Details Topological susceptibility for the SU(3) Yang--Mills theory Topological susceptibility for the SU(3) Yang--Mills theory

2004-09-16

arxiv.org/abs/hep-lat/0409100v1

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented at Lattice2004(topology); 3 pages, 2 figures

Scientific paper

10.1016/j.nuclphysbps.2004.11.32

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'.

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