1 research outputs found
Constraints on discrete symmetries from anomaly cancellation in compactified superstring theories
Compactified string theories give rise to discrete symmetries which are
essential if they are to provide a realistic low energy theory. We find that in
a class of four dimensional string theories these symmetries are constrained by
similar conditions to those discrete anomaly cancellation conditions found in
the case the discrete symmetry is a residue of a spontaneously broken gauge
symmetry. Such conditions strongly constrain the allowed form of the low energy
effective theory.Comment: 8 pages, OUTP-93-14