A new way to perform partial wave decompositions of few-nucleon forces

Understand

We formulate a general and exact method of partial wave decomposition (PWD) of any nucleon-nucleon (NN) potential and any three-nucleon (3N) force.

• The approach allows one to efficiently use symbolic algebra software to generate the interaction dependent part of the program code calculating the interaction.
• We demonstrate the feasibility of this approach for the one-boson exchange BonnB potential, a recent nucleon-nucleon chiral force and the chiral two-pion-exchange three-nucleon force.
• In all cases very good agreement between the new and the traditional PWD is found.