Extended Data Figure 4: Lattice spacing dependence of the topological susceptibility obtained from four different methods described in the text, namely, standard, ratio, reweighting and integral.
From: Calculation of the axion mass based on high-temperature lattice quantum chromodynamics
The plot shows lattice results with nf = 2 + 1 + 1 flavours of staggered quarks at a temperature of T = 300 MeV. For the ratio method, a misleading continuum extrapolation using Nt = 8, 10 and 12 is shown with a dashed line. For the reweighting and integral methods, continuum extrapolations are shown with bands. Error bars, s.e.m.
