The BPS Spectrum of N=2 SU(N) SYM and Parton Branes

Abstract

We apply ideas that have appeared in the study of D-branes on Calabi-Yau compactifications to the derivation of the BPS spectrum of field theories. In particular, we identify an orbifold point whose fractional branes can be thought of as ``partons'' of the BPS spectrum of N=2 pure SU(N) SYM. We derive the BPS spectrum and lines of marginal stability branes near that orbifold, and compare our results with the spectrum of the field theories.

29 pages, 4 figures, includes package diagrams.tex by Paul Taylor

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