Hints on the power corrections from current correlators in x-space

S Narison, V.I Zakharov
2001 Physics Letters B  
We consider an interpretation of the recent lattice data on the current-current correlators in the x-space. The data indicate rather striking difference between (axial)vector and (pseudo)scalar channels which goes beyond the predictions of the standard non-perturbative models. We argue that if the difference is to be explained by power corrections, there is a unique choice of the form of the correction. We discuss the emerging picture of the power corrections.
doi:10.1016/s0370-2693(01)01274-6 fatcat:2btprtjzhng63d5q2m5axdg5fu