Differential mass squared cross section for the $3\pi$ channel presented here as the cross section multipled by the bin width. The data are normalised to a branching ratio of 9.041%

Differential mass squared cross section for the $3\pi\pi^0$ channel presented here as the cross section multipled by the bin width. The data are normalised to a branching ratio of 4.590%

Invariant mass squared distribution for the Non-Strange Vector (V) contribution presented here as the cross section multipled by the bin width. The data are scaled by 100 and normalised to a branching ratio of 31.747%

Invariant mass squared distribution for the Axial-Vector (A) contribution presented here as the cross section multipled by the bin width. The data are scaled by 100 and normalised to a branching ratio of 19.369%

Invariant mass squared distribution for the Non-Strange Vector plus Axial-Vector (V+A) contribution presented here as the cross section multipled by the bin width. The data are scaled by 100 and normalised to a branching ratio of 51.116%

Invariant mass squared distribution for the Non-Strange Vector minus Axial-Vector (V-A) contribution presented here as the cross section multipled by the bin width. The data are scaled by 100 and normalised to a branching ratio of 12.379%

Statistical error correlation matrix for the $\pi\pi^0$ channel

Systematic error correlation matrix for the $\pi\pi^0$ channel

Statistical error correlation matrix for the $\pi 2\pi^0$ channel

Systematic error correlation matrix for the $\pi 2\pi^0$ channel

Statistical error correlation matrix for the $\pi 3\pi^0$ channel

Systematic error correlation matrix for the $\pi 3\pi^0$ channel

Statistical error correlation matrix for the $3\pi$ channel

Systematic error correlation matrix for the $3\pi$ channel

Statistical error correlation matrix for the $3\pi\pi^0$ channel

Systematic error correlation matrix for the $3\pi\pi^0$ channel

Total error correlation matrix for the V channel

Total error correlation matrix for the A channel

Total error correlation matrix for the V+A channel

Total error correlation matrix for the V-A channel

The correlation matrix of the normalized corrected data at the hadron level for the mass ratio $\rho=M_L^2/M_H^2$.

The normalized corrected data at the hadron level for the difference in emission angles $\theta^*$.

The correlation matrix of the normalized corrected data at the hadron level for the difference in emission angles $\theta^*$.

The normalized corrected data at the hadron level for the 2-point double ratio $C_2^{(1/5)}$.

The correlation matrix of the normalized corrected data at the hadron level for the 2-point double ratio $C_2^{(1/5)}$.

The corrected data for the derived distributions. The table lists the results for $\theta_{14}$ asymmetry ratios defined in Eq. (3), with the definitions of the towards, central and away regions given in Table 1 of the paper.

The corrected data for the derived distributions. The table lists the results for $\theta_{14}$ asymmetry ratios defined in Eq. (3), with the definitions of the towards, central and away regions given in Table 1 of the paper.

The corrected data for the derived distributions. The table lists the results for $\theta_{14}$ asymmetry ratios defined in Eq. (3), with the definitions of the towards, central and away regions given in Table 1 of the paper.

The corrected data for the derived distributions. The results for the asymmetries defined for the other observables.

The corrected data for the derived distributions. The results for the asymmetries defined for the other observables.

The corrected data for the derived distributions. The results for the asymmetries defined for the other observables.