Kinematical Analogy for Marginal Dyon Decay

Details Kinematical Analogy for Marginal Dyon Decay Kinematical Analogy for Marginal Dyon Decay

2007-10-24

arxiv.org/abs/0710.4533v2

Mod.Phys.Lett.A24:1507-1515,2009

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, minor revisions

Scientific paper

10.1142/S0217732309030023

We describe a kinematical analogy for the marginal decay of 1/4-BPS dyons in 4-dimensional N=4 string compactifications. In this analogy, the electric and magnetic charges play the role of spatial momenta, the BPS mass plays the role of energy, and 1/2-BPS dyons correspond to massless particles. Using SO(12,1) "Lorentz" invariance and standard kinematical formulae in particle physics, we provide simple derivations of the curves of marginal stability. We also show how these curves map into the momentum ellipsoid, and propose some applications of this analogy.

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