Author/Authors :
A.V. Anisovich، نويسنده , , C.A. Baker، نويسنده , , C.J. Batty، نويسنده , , D.V. Bugg، نويسنده , , L Montanet، نويسنده , , V.A. Nikonov، نويسنده , , A.V. Sarantsev، نويسنده , , V.V Sarantsev، نويسنده , , B.S. Zou، نويسنده ,
Abstract :
New Crystal Barrel data are reported for p̄p→ωη and p̄p→ωπ0π0 with ω decaying to π+π−π0. The ωη data confirm angular distributions obtained earlier from data where ω→π0γ. The new ωη data provide accurate measurements of vector and tensor polarisations of the ω and lead to considerable improvements in masses and widths of s-channel resonances. A new JPC=3+− I=0 resonance is observed with mass M=2025±20 MeV and width Γ=145±30 MeV. Polarisation is close to zero everywhere and tensor polarisations are large, as is the case also for p̄p→ωπ0.
