The reaction π-p → ωπ-p, ω → π+π-π0 has been studied at 18 GeV/c. The ωπ- mass spectrum is found to be dominated by the b1(1235). Partial Wave Analysis (PWA) shows that b1 production is dominated by natural parity exchange. The S-wave and D-wave amplitudes for b1 (1235) → ωπ have been determined, and it is found that the amplitude ratio, |D/S| = 0.269 ± (0.009)stat ± (0.01)sys and the phase difference, φ(D - S) = 10.54° ± (2.4°)stat ± (3.9°)sys.
|Original language||English (US)|
|Number of pages||10|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Aug 8 2002|
ASJC Scopus subject areas
- Nuclear and High Energy Physics