Exploring Three Nucleon Forces in Lattice QCD

Understand

We study the three nucleon force in Nf=2 dynamical clover fermion lattice QCD, utilizing the Nambu-Bethe-Salpeter wave function of the three nucleon system.

• Since parity-odd two nucleon potentials are not available in lattice QCD at this moment, we develop a new formulation to extract the genuine three nucleon force which requires only the information of parity-even two nucleon potentials.
• In order to handle the extremely expensive calculation cost, we consider a specific three-dimensional coordinate configuration for the three nucleons.
• We find that the linear setup is advantageous, where nucleons are aligned linearly with equal spacings.