4D Anomalous U(1)'s, their masses and their relation to 6D anomalies
arXiv:hep-th/0306042 · doi:10.1088/1126-6708/2003/08/005
Abstract
In some four-dimensional orientifolds, U(1) gauge fields that are free of four-dimensional anomalies can still be massive. It is shown that this is due to mass-generating six-dimensional anomalies. Six-dimensional anomalies affect four-dimensional masses via decompactifications.
LaTeX, 26 pages (v2), final version to be published in JHEP