Constraints on "rare" dyon decays

Abstract

We obtain the complete set of constraints on the moduli of N=4 superstring compactifications that permit "rare" marginal decays of 1/4-BPS dyons to take place. The constraints are analysed in some special cases. The analysis extends in a straightforward way to multi-particle decays. We discuss the possible relation between general multi-particle decays and multi-centred black holes.

27 pages

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• Deconstructing the D0-D6 system
• BPS Spectrum, Indices and Wall Crossing in N=4 Supersymmetric Yang-Mills Theories