A fully relativistic calculation of the πd →ηNN process, based on the leading diagram, is presented. The complete knowledge about the contributing vertices is taken into account. The role of the πN →ηN vertex was studied by using 1) only S
11, P
11, and D
13 partial waves single resonances, and 2) three coupled channel multiresonance unitary model for eight lowest partial waves. The final state
... [Show full abstract] NN interaction has been taken into account effectively using the Jost function recipe.