How to Measure S-Wave Production in the Reaction pi + n --> pi + pi + Delta
Jan, 197717 pages
Published in:
- Phys.Rev.D 17 (1978) 777
Report number:
- PTB-76
Citations per year
Abstract: (APS)
A method is proposed for performing a model-independent amplitude analysis of the reaction πN→ππΔ with the ππ system a superposition of S and P waves and where all moments of the joint-decay-angular distribution are used. A set of necessary positivity conditions for the moments are presented, and their relation to the amplitude analysis is discussed. Given data satisfying these conditions, the separation of S- and P-wave cross sections can be carried out in a model-independent way, although some discrete ambiguities may occur. In addition, improved upper and lower bounds on the S-wave cross section are derived which employ partial knowledge of the Δ decay moments.- PI NUCLEON: INTERACTION
- INTERACTION: PI NUCLEON
- PI: FINAL STATE
- FINAL STATE: PI
- NUCLEON: FINAL STATE
- FINAL STATE: NUCLEON
- PI+ P: INTERACTION
- INTERACTION: PI+ P
- PI+: FINAL STATE
- FINAL STATE: PI+
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