Extended Data Fig. 4: Model extrapolation plots.
From: A per-cent-level determination of the nucleon axial coupling from quantum chromodynamics
a, Model-averaged extrapolation of gA as a function of επ, determined as described in Supplementary Information (section S.7A). b, Determination of gA at the physical point from the model-averaging procedure. The magenta histogram is the final determination of gA, constructed from a weighted average of the various models used in the extrapolation, which appear as the distributions lying inside the final histogram. c–h, The resulting extrapolation of gA as a function of επ for each of the six models used in the averaging procedure (see Supplementary Information, section S.6). The magenta band is the resulting 68% confidence interval of the continuum, infinite-volume extrapolated value of gA as a function of επ. The red, green and blue curves are the central values of gA versus επ at fixed lattice spacings of 0.15 fm, 0.12 fm and 0.09 fm, respectively. Uncertainties are one s.e.m.
