Perturbation calculation of the axial anomaly of Ginsparg-Wilson fermion

Ting-Wai Chiu, Tung-Han Hsieh

We evaluate the axial anomaly for the general Ginsparg-Wilson fermion operator $D = D_c (\Id + R D_c)^{-1}$ with $R = r \Id$. For any chirally symmetric $D_c$ which in the free fer…