Benjamin Assel
The infrared fixed points of 3d N = 4 USp(2N) SQCD theories
Assel, Benjamin; Cremonesi, Stefano
Abstract
We derive the algebraic description of the Coulomb branch of 3d N = 4 U S p ( 2 N ) SQCD theories with N f fundamental hypermultiplets and determine their low energy physics in any vacuum from the local geometry of the moduli space, identifying the interacting SCFTs which arise at singularities and possible extra free sectors. The SCFT with the largest moduli space arises at the most singular locus on the Coulomb branch. For N f > 2 N (good theories) it sits at the origin of the conical variety as expected. For N f = 2 N we find two separate most singular points, from which the two isomorphic components of the Higgs branch of the UV theory emanate. The SCFTs sitting at any of these two vacua have only odd dimensional Coulomb branch generators, which transform under an accidental S U ( 2 ) global symmetry. We provide a direct derivation of their moduli spaces of vacua, and propose a Lagrangian mirror theory for these fixed points. For 2 ≤ N f < 2 N the most singular locus has one or two extended components, for N f odd or even, and the low energy theory involves an interacting SCFT of one of the above types, plus free twisted hypermultiplets. For N f = 0 , 1 the Coulomb branch is smooth. We complete our analysis by studying the low energy theory at the symmetric vacuum of theories with N < N f ≤ 2 N , which exhibits a local Seiberg-like duality.
Citation
Assel, B., & Cremonesi, S. (2018). The infrared fixed points of 3d N = 4 USp(2N) SQCD theories. SciPost Physics, 5(2), Article 015. https://doi.org/10.21468/scipostphys.5.2.015
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 16, 2018 |
Online Publication Date | Aug 14, 2018 |
Publication Date | Aug 14, 2018 |
Deposit Date | Feb 19, 2018 |
Publicly Available Date | Aug 16, 2018 |
Journal | SciPost Physics. |
Print ISSN | 2542-4653 |
Electronic ISSN | 2542-4653 |
Publisher | SciPost |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 2 |
Article Number | 015 |
DOI | https://doi.org/10.21468/scipostphys.5.2.015 |
Public URL | https://durham-repository.worktribe.com/output/1366231 |
Publisher URL | https://scipost.org/SciPostPhys.5.2.015 |
Related Public URLs | https://arxiv.org/abs/1802.04285 |
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
Copyright B. Assel and S. Cremonesi. This work is licensed under the Creative Commons Attribution 4.0 International License. Published by the SciPost Foundation.
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