The locality of the fourth root of staggered fermion determinant in the interacting case

hep-lat

/ Authors

C. Bernard, C. DeTar, Steven Gottlieb, U. Heller, J. E. Hetrick, L. Levkova, F. Maresca, D. Renner, R. Sugar, D. Toussaint

/ Abstract

The fourth root approximation in LQCD simulations with dynamical staggered fermions requires justification. We test its validity numerically in the interacting theory in a renormalization group framework.