Nuclear and neutron matter $G$-matrix calculations with Ch-EFT potential including effects of three-nucleon interaction

Understand

Energies of symmetric nuclear matter and neutron matter are evaluated in the lowest order Bruekner theory using the Ch-EFT potential including effects of the three-nucleon force (3NF).

• The 3NF is first reduced to density-dependent nucleon-nucleon (NN) force by folding single-nucleon degrees of freedom in infinite matter.
• Adding the reduced NN force to the initial NN force and applying a partial-wave expansion, we perform $G$-matrix calculations in pure neutron matter as well as in symmetric nuclear.
• We obtain the saturation curve which is close to the empirical one.