Speaker
Jacob Leedom
(Lawrence Berkeley National Laboratory)
Description
We use Pauli-Villars regularization to evaluate the conformal and chiral anomalies in the effective field theories from $Z_3$ and $Z_7$ compactifications of the heterotic string without Wilson lines. We show that parameters for Pauli-Villars chiral multiplets can be chosen in such a way that the anomaly is universal in the sense that its coefficient depends only on a single holomorphic function of the three diagonal moduli. It is therefore possible to cancel the anomaly by a generalization of the four-dimensional Green-Schwarz mechanism. In particular we are able to reproduce the results of a string calculation of the four-dimensional chiral anomaly for these two models.
Authors
Jacob Leedom
(Lawrence Berkeley National Laboratory)
Dr
Mary K Gaillard
(UC Berkeley)
