Corrigendum to “Odd and even partial waves of ηπ⁻ and η′π⁻ in π⁻p → η^(′)π⁻p at 191 GeV/c” [Phys. Lett. B 740 (2015) 303–311] (Physics Letters B (2015) 740 (303–311), (S0370269314008685), (10.1016/j.physletb.2014.11.058))

In Fig. 5 on p. 311 of our Phys. Lett. B 740 (2015) 303 an adjustment by 180^∘ is required for the phases with respect to the L=2,M=1 wave, of the following waves: L=1,3,5 with M=1, and L=2 with M=2. After this correction (Fig. 5 (corrected) below), the extracted partial waves describe the angular distribution of the η^(′) in the Gottfried-Jackson (GJ) frame, using Eq. (4) with implicit Condon-Shortley phase convention. The other results of our paper are not affected. The right-handed GJ coordinate system was defined by the z-axis pointing in the direction of the beam in the η^(′)π⁻ center-of-mass system and the y-axis pointing in the direction of p_recoil^GJ×p_beam^GJ.