We derive the general form of the moduli-space effective action for the long-range interaction of two BPS dyons in N = 2 gauge theories. This action determines the bound state structure of various BPS and non-BPS states near marginal stability curves, and we utilise it to compute the leading correction to the BPS-mass of zero-torsion non-BPS bound states close to marginal stability.
|Original language||English (US)|
|Number of pages||5|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Oct 2 2008|
Bibliographical noteFunding Information:
A.V. thanks the CERN Theory Group for hospitality and support. This work was supported in part by NSERC, Canada (A.R.), and by the DOE under grant number DE-FG02-94ER408 (A.V.).