NN → NNπ at LAMPF and TRIUMF
2008
This paper describes a partial wave analysis of pp → npπ+ spin correlation measurements at LAMPF in the energy range 500–800 MeV. The large amplitudes for 1D2, 3D2 and 3F3 NN → NΔ and for 3P1 NN → NS are well determined and rather insensitive to variations in the fit. We interpret the data as evidence against broad dibaryons in this energy range. The NΔ S‐wave phase shift provides evidence for an attractive NΔ threshold interaction. Planned np → ppπ− spin dependent measurements at both TRIUMF and LAMPF are described.
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