Study of the wave with JPC=1−+ in the partial‐wave analysis of ήπ−, ηπ−, f1π−, and ρ0π− systems produced in π−N interactions at pπ−=37 GeV/c.

The wave with exotic quantum numbers JPC=1−+ is studied in η’π−, ηπ−, f1π−, and ρ0π− systems produced in π−N interactions at pπ−=37 GeV/c in the high‐statistics experiment at IHEP VES setup. The magnitude of JPC=1−+ wave in η’π− system significantly exceeds that in ηπ− system. Resonance‐like structure with mass M=1.62±0.02 GeV and with Γ=0.24±0.05 GeV is observed in ρ0π− system.