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On the classification of 6D SCFTs and generalized ADE orbifolds

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TLDR
In this paper, the authors studied 6D superconformal eld theories (SCFTs) that can be constructed in F-theory and obtained all other SCFTs by bringing in a number of E-string theories and/or decorating curves in the base by non-minimal gauge algebras.
Abstract
We study (1; 0) and (2; 0) 6D superconformal eld theories (SCFTs) that can be constructed in F-theory. Quite surprisingly, all of them involve an orbifold singularity C 2 = with a discrete subgroup of U(2). When is a subgroup of SU(2), all discrete subgroups are allowed, and this leads to the familiar ADE classication of (2 ; 0) SCFTs. For more general U(2) subgroups, the allowed possibilities for are not arbitrary and are given by certain generalizations of the A- and D-series. These theories should be viewed as the minimal 6D SCFTs. We obtain all other SCFTs by bringing in a number of E-string theories and/or decorating curves in the base by non-minimal gauge algebras. In this way we obtain a vast number of new 6D SCFTs, and we conjecture that our construction provides a full list.

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Atomic classification of 6D SCFTs

TL;DR: Heckman et al. as discussed by the authors used F-theory to classify possibly all six-dimensional superconformal field theories (SCFTs) and showed that all of these tensor branches have the structure of a linear chain of intersecting spheres with a small amount of possible decoration at the two ends.
Journal ArticleDOI

6d Conformal matter

TL;DR: In this article, the Coulomb/tensor branch of (G, G′) conformal matter has been shown to be a (1, 0) superconformal system in six dimensions.
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Tensionless Strings and the Weak Gravity Conjecture

TL;DR: In this paper, the authors test various conjectures about quantum gravity for six-dimensional string compactifications in the framework of F-theory and show that such a limit must be located at infinite distance in the moduli space.
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Anomaly polynomial of general 6D SCFTs

TL;DR: In this article, the authors describe a method to determine the anomaly polynomials of general 6d N=(2,0) and N=(1-0) SCFTs, in terms of the anomaly matching on their tensor branches.
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Holography for (1,0) theories in six dimensions

TL;DR: In this paper, the authors point out that these theories sit at the end of RG ows which start from six-dimensional theories which admit an M-theory construction as a M5 stack transverse to R 4 =Zk R.
References
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Journal ArticleDOI

Compactifications of F-theory on Calabi-Yau threefolds. (I)

TL;DR: In this article, the authors studied compactifications of F-theory on Calabi-Yau three-folds and showed that string/string duality in six dimensions gets mapped to fiber/base exchange in Ftheory.
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Small instantons in string theory

TL;DR: In this article, it was shown that the quantum heterotic string has vacua with higher rank than is possible in conformal field theory, and that an extra SU (2) gauge symmetry appears that is supported in the core of the instanton.
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New Phenomena in SU(3) Supersymmetric Gauge Theory

TL;DR: In this article, it was shown that the low-energy theory at this point is an N = 2 superconformal U(1) gauge theory containing both electrically and magnetically charged massless hypermultiplets.
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On isolated rational singularities of surfaces.

TL;DR: In this paper, the authors considered the question of whether a singularity giving rise to such a configuration is necessarily a double point and showed that it is a triple point, which is the case for rational triple points.
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