The π+π- invariant mass distribution produced in p̄p annihilation at rest and recoiling against η mesons exhibits large interference between the amplitudes for ρη and ωη production. The interference can be quantitatively described within the framework of ρ-ω interference. We find full coherence between the ρη-ωη production amplitudes and a vanishing relative production phase. The implications of this result for pp annihilation dynamics are discussed.
|Number of pages||7|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - Oct 16 1997|
ASJC Scopus subject areas
- Nuclear and High Energy Physics