Universality of the topological susceptibility in the SU(3) gauge theory
Universality of the topological susceptibility in the SU(3) gauge theory
The definition and computation of the topological susceptibility in non-abelian gauge theories is complicated by the presence of non-integrable short-distance singularities. Recently, alternative representations of the susceptibility were discovered, which are singularity-free and do not require renormalization. Such an expression is here studied quantitatively, using the lattice formulation of the …