Data are presented on antiproton neutron annihilation at rest into ωπ-π0 taken with the Crystal Barrel detector at LEAR (CERN) using a liquid deuterium target. The partial wave analysis shows evidence for at least two ωπ vector resonances above the ρ(770) ground-state. Possible evidence for a third ρ′ state with a mass around 1180 MeV is discussed. The results are compared to model dependent predictions concerning the nature of the ρ′ states.
- Vector mesons
ASJC Scopus subject areas
- Nuclear and High Energy Physics