N=1 Deformations and RG flows of N=2 SCFTs, part II: non-principal deformations

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We continue to investigate the N = 1 deformations of four-dimensional N = 2 superconformal field theories (SCFTs) labeled by a nilpotent element of the flavor symmetry [1]. This triggers a renormalization group (RG) flow to an N = 1 SCFT. We systematically analyze all possible deformations of this type for certain classes of N = 2 SCFTs: conformal SQCDs, generalized Argyres-Douglas theories and the E-6 SCFT. We find a number of examples where the amount of supersymmetry gets enhanced to N = 2 at the end point of the RG flow. Most notably, we find that the SU(N) and Sp(N) conformal SQCDs can be deformed to flow to the Argyres-Douglas (AD) theories of type (A(1), D2N-1) and (A(1), D-2N) respectively. This RG flow therefore allows us to compute the full superconformal index of the (A(1), D-N) class of AD theories. Moreover, we find an infrared duality between N = 1 theories where the fixed point is described by an N = 2 AD theory. We observe that the classes of examples that exhibit supersymmetry enhancement saturate certain bounds for the central charges implied by the associated two-dimensional chiral algebra.
Publisher
SPRINGER
Issue Date
2016-12
Language
English
Article Type
Article
Citation

JOURNAL OF HIGH ENERGY PHYSICS, no.12

ISSN
1029-8479
DOI
10.1007/JHEP12(2016)103
URI
http://hdl.handle.net/10203/274005
Appears in Collection
PH-Journal Papers(저널논문)
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