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A sophisticated coupled-channel analysis is presented that combines differentprocesses: the channels $\pi^0\pi^0\eta$, $\pi^0\eta\eta$ and $K^+K^-\pi^0$from $\bar{p}p$ annihilations, the P- and D-wave amplitudes of the $\pi\eta$and $\pi\eta^\prime$ systems produced in $\pi^- p$ scattering, and data from$\pi\pi$-scattering reactions. Hence our analysis combines the data sets usedin two independent previous analyses published by the Crystal Barrel experimentand by the JPAC group. Based on the new insights from these studies, this paperaims at a better understanding of the spin-exotic $\pi_1$ resonances in thelight-meson sector. By utilizing the K-matrix approach and realizing theanalyticity via Chew-Mandelstam functions the amplitude of the spin-exotic wavecan be well described by a single $\pi_1$ pole for both systems, $\pi\eta$ and$\pi\eta^\prime$. The mass and width of the $\pi_1$-pole are measured to be$(1623 \, \pm \, 47 \, ^{+24}_{-75}\,)\, \mathrm{MeV/c}^2$ and $(455 \, \pm \,88 \, ^{+144}_{-175}\,)\, \mathrm{MeV}$.

Investigation of the Lightest Hybrid Meson Candidate with a Coupled-Channel Analysis of $\bar{p}p$-, $\pi^- p$- and $\pi\pi$-Data