Two-dimensional Chiral Anomaly in Differential Regularization
arXiv:hep-th/9902199 · doi:10.1016/S0370-2693(99)00691-7
Abstract
The two-dimensional chiral anomaly is calculated using differential regularization. It is shown that the anomaly emerges naturally in the vector and axial Ward identities on the same footing as the four-dimensional case. The vector gauge symmetry can be achieved by an appropriate choice of the mass scales without introducing the seagull term. We have analyzed the reason why such a universal result can be obtained in differential regularization.
9 pages, RevTex, no figures, a mistake in the massive case pointed out by the referee is corrected