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Instanton operators and the Higgs branch at infinite coupling

Cremonesi, Stefano; Ferlito, Giulia; Hanany, Amihay; Mekareeya, Noppadol

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Giulia Ferlito

Amihay Hanany

Noppadol Mekareeya


The richness of 5d N=1N=1 theories with a UV fixed point at infinite coupling is due to the existence of local disorder operators known as instanton operators. By considering the Higgs branch of SU(2) gauge theories with Nf ≤ 7 flavours at finite and infinite coupling, we write down the explicit chiral ring relations between instanton operators, the glueball superfield and mesons. Exciting phenomena appear at infinite coupling: the glueball superfield is no longer nilpotent and the classical chiral ring relations are quantum corrected by instanton operators bilinears. We also find expressions for the dressing of instanton operators of arbitrary charge. The same analysis is performed for USp(2k) with an antisymmetric hypermultiplet and pure SU(N) gauge theories.


Cremonesi, S., Ferlito, G., Hanany, A., & Mekareeya, N. (2017). Instanton operators and the Higgs branch at infinite coupling. Journal of High Energy Physics, 2017(4), Article 042.

Journal Article Type Article
Acceptance Date Mar 25, 2017
Online Publication Date Apr 10, 2017
Publication Date Apr 10, 2017
Deposit Date May 3, 2017
Publicly Available Date May 8, 2017
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2017
Issue 4
Article Number 042
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Published Journal Article (760 Kb)

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Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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