Electric Dipole Moment Results from lattice QCD

We utilize the gradient flow to define and calculate electric dipole moments induced by the strong QCD θ -term and the dimension-6 Weinberg operator. The gradient flow is a promising tool to simplify the renormalization pattern of local operators. The results of the nucleon electric dipole moments are calculated on PACS-CS gauge fields (available from the ILDG) using N f = 2+1, of discrete size 32 3 ×64 and spacing a ≃ 0.09 fm. These gauge fields use a renormalization-group improved gauge action and a nonperturbatively O ( a ) improved clover quark action at β = 1.90, with c SW = 1.715. The calculation is performed at pion masses of m π ≃ 411, 701 MeV.