Dyon dynamics near marginal stability and non-BPS states

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6 Scopus citations


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 languageEnglish (US)
Pages (from-to)148-152
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number2
StatePublished - Oct 2 2008

Bibliographical note

Funding 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.).


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