Abstract
The 1500 MeV and 1700 MeV enhancements observed in the p ππ system are analyzed. It is found that the 1500 MeV effect is not a pure angular momentum state. Neither t- nor s-channel helicity is conserved. The 1700 MeV effect gives good fits to J= 3 2 and 5 2 decaying to p ππ. In the decay mode Δ ++π −J= 5 2 is preferred over 3 2 . Moment analysis shows consistency with t- rather than s-channel helicity conservation.
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