Partial wave analysis of p̄p annihilation channels in flight with I=1,C=+1

A combined analysis is reported of 3π0, π0η and π0η′ data in the mass range 1960 to 2410 MeV. This analysis is made consistent also with ηηπ0 data, reported separately. The analysis requires s-channel resonances with a spectrum close to that published earlier for C=+1 states with I=0; masses for I=1 states are lower on average by 20 MeV. Two alternative solutions are found, differing only for JP=2+ and 4+ states by small amounts in masses and widths. Both 3π0 and ηπ0 data prefer one of these two solutions. For this preferred solution, observed states have JPC, masses and widths (M,Γ) in MeV as follows: 4−+: (2250±15, 215±25), 4++: (2255±40, 330+110−50) and (2005+25−45, 180±30), 3++: (2275±35, 350+100−50) and (2031±12, 150±18), 2−+: (2245±60, 320+100−40) and (2005±15, 200±40), 2++: (2255±20, 230±15), (2175±40, 310+90−45) and (2030±20, 205±30), and 1++: (2270+55−40, 305+70−35). There are indications of further 2−+, 2++ and 1++ contributions just below the available mass range, and also a 0++ state at ∼2025 MeV.