FURTHER COMMENTS ON DESCRIPTION OF 3-BODY ASSOCIATED PRODUCTION IN PROTON-PROTON COLLISIONS THROUGH ONE-BOSON-EXCHANGE MODEL

The parameters of the one-boson-exchange model (including pion and kaon exchange), applied in a previous work to the reactions pp→YKN, are reexamined in the light of the results from a recent experment which presents new data on production. It is found that the cutoff parameters on the momentum transfer in pion exchange must be different for Λ and production. Furthermore, in the former case, the relative amounts of π and K exchange cannot be determined from experiment, provided pion exchange is assumed to be dominant. Finally, a criticism is raised about the existing estimates of resonance production in the above reactions. © 1968 The American Physical Society.