Production Effects and Final-state Interactions in ${\pi }_1\to 3\pi$

D. Winney, S. Gonzàlez-Solís, M. Mikhasenko +8

We investigate the ${\pi }_1(1600)$ signal channel of $3\pi$ in the $J^{PC}=1^{-+}[\pi \pi {]}_{1^{--}}\pi P$-wave. This channel has recently been analyzed by the COMPASS collaboration using t…