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Originalpublikation
Peña, M.T.; Sauer, P.U.; Stadler, A.; Kortemeyer, G.: Three-nucleon force and the Δ mechanism for pion production and pion absorption. In: Physical Review C 48 (1993), Nr. 5, S.2208-2221. DOI: https://doi.org/10.1103/PhysRevC.48.2208
The description of the three-nucleon system in terms of nucleon and Δ degrees of freedom is extended to allow for explicit pion production (absorption) from single dynamic Δ deexcitation (excitation) processes. This mechanism yields an energy dependent effective three-body Hamiltonian. The Faddeev equations for the trinucleon bound state are solved with a force model that has already been tested in the two-nucleon system above pion-production threshold. The binding energy and other bound-state properties are calculated. The contribution to the effective three-nucleon force arising from the pionic degrees of freedom is evaluated. The validity of previous coupled-channel calculations with explicit but stable Δ isobar components in the wave function is studied.
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