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Half-hypers and quivers

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Abstract

We study systematically the BPS spectra of \(\mathcal{N} = 2\) SYM coupled to half - hypermultiplets, the basic example being E 7 SYM coupled to a half-hyper in the 56 irrepr. In order to do this, we determine the BPS quivers with superpotential of such \(\mathcal{N} = 2\) models using a new technique we introduce. The computation of the BPS spectra in the various chambers is then reduced to the Representation Theory of the resulting quivers. We use the quiver description to study the BPS spectrum at both strong and weak coupling. The following models are discussed in detail: SU(6) SYM coupled to a \(\frac{1}{2}\) 20, SO(12) SYM coupled to a \(\frac{1}{2}\) 32, and E 7 SYM coupled to a \(\frac{1}{2}\) 56. For models with gauge group SU(2) × SO(2n) and matter in the \(\frac{1}{2}\) (2, 2n) we find strongly coupled chambers with a BPS spectrum consisting of just finitely many hypermultiplets.

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  1. Scuola Internazionale Superiore di Studi Avanzati, via Bonomea 265, I-34100, Trieste, Italy

    Sergio Cecotti & Michele Del Zotto

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  1. Sergio Cecotti
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  2. Michele Del Zotto
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Correspondence to Michele Del Zotto.

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ArXiv ePrint: 1207.2275

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Cecotti, S., Del Zotto, M. Half-hypers and quivers. J. High Energ. Phys. 2012, 135 (2012). https://doi.org/10.1007/JHEP09(2012)135

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