The πNN Dynamics on NN — NN,pp — πd, πd — πd, and pp — πNN below 1 GeV

Abstract

NN — NN, pp — πd, πd — πd, and pp — πNN processes at incident proton laboratory energies T L ≤ 1 GeV are studied in a unified and unitary framework of the πNN dynamics. The three-body calculation is made with the πN interactions in the P 11, P 33, S 11 and S 31 states and the NN interactions in the 3 S 1 — 3 D 1, 1 S 0, and 3 P 2 states. Additionally, (A) the backward going pion contribution at πNΔ vertex, (B) the πN — ρN coupling in the P 33 state, (C) the heavy meson exchange in NN → NN driving term, and (D) the effect of the off-shell structure in πN — ρNP 33 interaction are taken into account.