The BPS spectrum of the 4d N=2 SCFT's H1, H2, D4, E6, E7, E8
Abstract
Extending results of arXiv:1112.3984, we show that all rank 1 N=2 SCFT's in the sequence H1, H2, D4 E6, E7, E8 have canonical finite BPS chambers containing precisely 2 h(F)=12(Delta-1) hypermultiplets. The BPS spectrum of the canonical BPS chambers saturates the conformal central charge c, and satisfies some intriguing numerology.
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