Abstract

The three-body nuclear potential is calculated assuming that: (1) three pions are exchanged among three nucleons; (2) the static pion theory is valid without pion-pion interactions. The obtained expressions are very complicated, so that numerical calculations are carried out only in the case of the triton forming an equilateral triangle. The result is compared with the previously calculated three-body potential due to two-pion exchange. It is found that the latter is predominant if the length of a side is more than 0.8 h ̷ m πc .

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