1/2 BPS Wilson loops in non-conformal N = 2 gauge theories and localization: a three-loop analysis

Fuente: arXiv
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Main Authors: Billo', Marco, Griguolo, Luca, Testa, Alessandro
Format: Preprint
Published: 2024
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author Billo', Marco
Griguolo, Luca
Testa, Alessandro
author_facet Billo', Marco
Griguolo, Luca
Testa, Alessandro
contents We study the 1/2 BPS circular Wilson loop in four-dimensional SU(N), $N = 2$ SYM theories with massless hypermultiplets and non-vanishing $β$-function. Using super-symmetric localization on $S_4$ , we map the path-integral associated with this observable onto an interacting matrix model. Despite the breaking of conformal symmetry at the quantum level, we show that, within a specific regime, the matrix model predictions remain consistent with the perturbative results in flat space up to order $g^6$ . At this order, our analysis reveals that the reorganization of Feynman diagrams based on the matrix model interaction potential, widely tested in (super)conformal models, also applies to these non-conformal set-ups and is realized by interference mechanisms.
format Preprint
id arxiv_https___arxiv_org_abs_2410_14847
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle 1/2 BPS Wilson loops in non-conformal N = 2 gauge theories and localization: a three-loop analysis
Billo', Marco
Griguolo, Luca
Testa, Alessandro
High Energy Physics - Theory
We study the 1/2 BPS circular Wilson loop in four-dimensional SU(N), $N = 2$ SYM theories with massless hypermultiplets and non-vanishing $β$-function. Using super-symmetric localization on $S_4$ , we map the path-integral associated with this observable onto an interacting matrix model. Despite the breaking of conformal symmetry at the quantum level, we show that, within a specific regime, the matrix model predictions remain consistent with the perturbative results in flat space up to order $g^6$ . At this order, our analysis reveals that the reorganization of Feynman diagrams based on the matrix model interaction potential, widely tested in (super)conformal models, also applies to these non-conformal set-ups and is realized by interference mechanisms.
title 1/2 BPS Wilson loops in non-conformal N = 2 gauge theories and localization: a three-loop analysis
topic High Energy Physics - Theory
url https://arxiv.org/abs/2410.14847