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hep-th1999
BPS Structure of Argyres-Douglas Superconformal Theories
Alfred D. Shapere, Cumrun Vafa
We study geometric engineering of Argyres-Douglas superconformal theories realized by type IIB strings propagating in singular Calabi-Yau threefolds. We use this construction to co…
hep-th1995
Curves of Marginal Stability in N=2 Super-QCD
Philip C. Argyres, Alon E. Faraggi, Alfred D. Shapere
We present a simple argument determining the shape of the curves of marginal stability in the N=2 supersymmetric SU(2) QCD with less than 4 massless flavors. The argument relies on…