9  w_0 scale setting

The fit antsaz: \left(\frac{w_0}{a}\right)_{lat}=\frac{w_0^{iso}}{a}\left[1+P[5](\xi-\xi^{iso})\right] with \xi=\frac{M_\pi^2}{(4\pi f_\pi)^2}, and the chiral LO from (Bär and Golterman 2014, eq (4.8)).

\chi^2/dof= 3.64428

par a_from_w0 a_from_fpi
a(A) 0.094478(94) 0.09025(79)
a(B) 0.080890(26) 0.07948(11)
a(C) 0.068758(38) 0.06819(14)
a(D) 0.057124(34) 0.056850(90)
a(E) 0.049148(38) 0.04892(11)
P[5] 0.573(24) 0
<r >

<r >