Author/Authors :
A.V. Anisovich، نويسنده , , C.A. Baker، نويسنده , , C.J. Batty، نويسنده , , D.V. Bugg، نويسنده , , C. Hodd، نويسنده , , V.A. Nikonov، نويسنده , , A.V. Sarantsev، نويسنده , , V.V. Sarantsev، نويسنده , , B.S. Zou، نويسنده ,
Abstract :
New data on p̄p→ηπ0π0π0 at beam momenta 900–1200 MeV/c reveal evidence for a threshold enhancement in the f0(980)η channel. Quantum numbers JPC=0−+ are preferred strongly over 1++ and 2−+. The enhancement may be interpreted as the high mass tail of a resonance below threshold decaying to f0(980)η. The η(1440)π final state is observed with η(1440)→ησ and a0(980)π. It is produced dominantly from the p̄p 3P0 channel, and is consistent with S-wave decays from an I=1, JPC=0++ resonance observed earlier at 2025 MeV.
