Author/Authors :
G. Martinelli، نويسنده , , G.C. Rossi، نويسنده , , C.T. Sachrajda، نويسنده , , S. Sharpe، نويسنده , , M. Talevi، نويسنده , , M. Testa، نويسنده ,
Abstract :
We propose a method to improve lattice operators composed of Wilson fermions which allows the removal of all corrections of O(a), including those proportional to the quark mass. It requires off-shell improvement of quark fields and composite operators, which is achieved by studying the behaviour of quark and gluon correlation functions at large momenta.
