We establish the relationship between the partial-wave analysis of the pp→pn reaction by Shypit et al. [Phys. Rev. Lett. 60, 901 (1988); 61, 2385 (1988)] and the unitary formulation of the πNN problem. It is shown that the NΔ phases extracted by Shypit et al. are not exclusively due to the NΔ interaction.
- Received 5 June 1989
- Published in the issue dated December 1989
© 1989 The American Physical Society