A NEW LOOK INTO THE PARTIAL-WAVE DECOMPOSITION OF 3-NUCLEON FORCES

We demonstrate that the partial-wave decomposition of three-nucleon fo rces used up to now in momentum space has to be necessarily unstable f or high partial waves. This does not affect the applications performed up to now, which were restricted to low partial waves. We present a n ew way to perform the partial-wave decomposition free of that defect. This is exemplified for the most common two-pion-exchange Tucson-Melbo urne three-nucleon force. For the lower partial waves the results of t he old method are reproduced.