arXiv:0802.1672·v1·High Energy Physics — Theory
Chern-Simons and WZW Anomaly Cancelations Across Dimensions
Christopher T. Hill🇺🇸 · Cosmas K. Zachos🇺🇸
Abstract
The WZW functional in D=4 can be derived directly from the Chern-Simons functional of a compactified D=5 gauge theory and the boundary fermions it supplants. A simple pedagogical model based on U(1) gauge groups illustrates how this works. A bulk-boundary system with the fermions eliminated manifestly evinces anomaly cancelations between CS and WZW terms.
Comments: 6 pages, ReVtex 4, no figures