Resolution of the Problem
Oct, 19808 pages
Published in:
- Nucl.Phys.B 187 (1981) 293-300
- Published: 1981
Report number:
- Print-80-0819 (ECOLE POLY)
Citations per year
Abstract: (Elsevier)
It is shown that the discrepancy between experiment and the soft pion current algebra for η → 3 π is mainly due to the square root threshold singularity induced by the strong pion-pion final-state interaction. It is found that Γ ( η → π + π − π 0 ) = 200 eV, in excellent agreement with the experimental result 204 ± 29 eV.- ETA(549): HADRONIC DECAY
- HADRONIC DECAY: ETA(549)
- PI PI: FINAL-STATE INTERACTION
- FINAL-STATE INTERACTION: PI PI
- THRESHOLD
- ETA(549): DECAY WIDTH
- DECAY WIDTH: ETA(549)
- PHOTON: PROPAGATOR
- CURRENT ALGEBRA: COMMUTATION RELATIONS
- PI PI: PARTIAL WAVE
References(11)
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