Analysis of Ward identities in supersymmetric Yang–Mills theory

Abstract In numerical investigations of supersymmetric Yang–Mills theory on a lattice, the supersymmetric Ward identities are valuable for finding the critical value of the hopping parameter and for examining the size of supersymmetry breaking by the lattice discretisation. In this article we presen...

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Main Authors: Sajid Ali, Georg Bergner, Henning Gerber, Istvan Montvay, Gernot Münster, Stefano Piemonte, Philipp Scior
Format: Article
Language:English
Published: SpringerOpen 2018-05-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-018-5887-9
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author Sajid Ali
Georg Bergner
Henning Gerber
Istvan Montvay
Gernot Münster
Stefano Piemonte
Philipp Scior
author_facet Sajid Ali
Georg Bergner
Henning Gerber
Istvan Montvay
Gernot Münster
Stefano Piemonte
Philipp Scior
author_sort Sajid Ali
collection DOAJ
description Abstract In numerical investigations of supersymmetric Yang–Mills theory on a lattice, the supersymmetric Ward identities are valuable for finding the critical value of the hopping parameter and for examining the size of supersymmetry breaking by the lattice discretisation. In this article we present an improved method for the numerical analysis of supersymmetric Ward identities, which takes into account the correlations between the various observables involved. We present the first complete analysis of supersymmetric Ward identities in $$\mathcal {N}=1$$ N=1 supersymmetric Yang–Mills theory with gauge group SU(3). The results indicate that lattice artefacts scale to zero as $$O(a^2)$$ O(a2) towards the continuum limit in agreement with theoretical expectations.
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spelling doaj.art-bc031e04d7d9457c88f5093bab3510df2022-12-22T02:59:45ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-05-017851610.1140/epjc/s10052-018-5887-9Analysis of Ward identities in supersymmetric Yang–Mills theorySajid Ali0Georg Bergner1Henning Gerber2Istvan Montvay3Gernot Münster4Stefano Piemonte5Philipp Scior6Institute for Theoretical Physics, University of MünsterInstitute for Theoretical Physics, University of MünsterInstitute for Theoretical Physics, University of MünsterDeutsches Elektronen-Synchrotron DESYInstitute for Theoretical Physics, University of MünsterInstitute for Theoretical Physics, University of RegensburgInstitute for Theoretical Physics, University of MünsterAbstract In numerical investigations of supersymmetric Yang–Mills theory on a lattice, the supersymmetric Ward identities are valuable for finding the critical value of the hopping parameter and for examining the size of supersymmetry breaking by the lattice discretisation. In this article we present an improved method for the numerical analysis of supersymmetric Ward identities, which takes into account the correlations between the various observables involved. We present the first complete analysis of supersymmetric Ward identities in $$\mathcal {N}=1$$ N=1 supersymmetric Yang–Mills theory with gauge group SU(3). The results indicate that lattice artefacts scale to zero as $$O(a^2)$$ O(a2) towards the continuum limit in agreement with theoretical expectations.http://link.springer.com/article/10.1140/epjc/s10052-018-5887-9
spellingShingle Sajid Ali
Georg Bergner
Henning Gerber
Istvan Montvay
Gernot Münster
Stefano Piemonte
Philipp Scior
Analysis of Ward identities in supersymmetric Yang–Mills theory
European Physical Journal C: Particles and Fields
title Analysis of Ward identities in supersymmetric Yang–Mills theory
title_full Analysis of Ward identities in supersymmetric Yang–Mills theory
title_fullStr Analysis of Ward identities in supersymmetric Yang–Mills theory
title_full_unstemmed Analysis of Ward identities in supersymmetric Yang–Mills theory
title_short Analysis of Ward identities in supersymmetric Yang–Mills theory
title_sort analysis of ward identities in supersymmetric yang mills theory
url http://link.springer.com/article/10.1140/epjc/s10052-018-5887-9
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AT istvanmontvay analysisofwardidentitiesinsupersymmetricyangmillstheory
AT gernotmunster analysisofwardidentitiesinsupersymmetricyangmillstheory
AT stefanopiemonte analysisofwardidentitiesinsupersymmetricyangmillstheory
AT philippscior analysisofwardidentitiesinsupersymmetricyangmillstheory