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

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

References in corpus (5)

• Numerical techniques for lattice QCD in the $\epsilon$--regime
• Lattice QCD in the epsilon-regime and random matrix theory
• Light quark masses, chiral condensate and quark-gluon condensate in quenched lattice QCD with exact chiral symmetry
• Topological susceptibility in full QCD with Ginsparg-Wilson fermions
• Topological susceptibility from the overlap

Cited by in corpus (1)

• An Eta Primer: Solving the U(1) Problem with AdS/QCD