Further study on U(1) gauge invariance restoration

To further investigate the applicability of the projection scheme for elimi nating the unphysical divergence s/m(e)(2) due to U(1) gauge invariance vio lation, we study the process e(-) + W+ --> e(-) + (t) over bar + b which po ssesses advantages of simplicity and clearness. Our study indicates that th e projection scheme can indeed eliminate the unphysical divergence s/m(e)(2 ) caused by the U(1) gauge invariance violation and the scheme can be appli ed to very high energy region.