Precision study of the SU(3) topological susceptibility in the continuum

Abstract

We determine the topological susceptibility in the SU(3) pure gauge theory. We perform a series of high-statistics lattice studies and take the combined continuum and infinite volume limit. We find chi_{top}r_0^4=0.0524(7)(6) which translates into chi_{top}^{1/4}=193(1)(8)MeV with the second error exclusively due to the intrinsic scale ambiguity.

Comments: 13 pages, 7 figures. v2: several new footnotes, one figure augmented, 9 Refs added, 1 Ref corrected; matches published version