Cluster adjacency for m = 2 Yangian invariants

Abstract We classify the rational Yangian invariants of the m = 2 toy model of N $$ \mathcal{N} $$ = 4 Yang-Mills theory in terms of generalised triangles inside the amplituhedron A n , k 2 $$ {\mathcal{A}}_{n,k}^{(2)} $$ . We enumerate and provide an explicit formula for all invariants for any numb...

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Main Authors: Tomasz Łukowski, Matteo Parisi, Marcus Spradlin, Anastasia Volovich
Format: Article
Language:English
Published: SpringerOpen 2019-10-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP10(2019)158
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author Tomasz Łukowski
Matteo Parisi
Marcus Spradlin
Anastasia Volovich
author_facet Tomasz Łukowski
Matteo Parisi
Marcus Spradlin
Anastasia Volovich
author_sort Tomasz Łukowski
collection DOAJ
description Abstract We classify the rational Yangian invariants of the m = 2 toy model of N $$ \mathcal{N} $$ = 4 Yang-Mills theory in terms of generalised triangles inside the amplituhedron A n , k 2 $$ {\mathcal{A}}_{n,k}^{(2)} $$ . We enumerate and provide an explicit formula for all invariants for any number of particles n and any helicity degree k. Each invariant manifestly satisfies cluster adjacency with respect to the Gr(2, n) cluster algebra.
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spelling doaj.art-966c9463b09645a7a8e6249a04e112792022-12-21T23:42:52ZengSpringerOpenJournal of High Energy Physics1029-84792019-10-0120191011110.1007/JHEP10(2019)158Cluster adjacency for m = 2 Yangian invariantsTomasz Łukowski0Matteo Parisi1Marcus Spradlin2Anastasia Volovich3School of Physics, Astronomy and Mathematics, University of HertfordshireMathematical Institute, University of OxfordDepartment of Physics, Brown UniversityDepartment of Physics, Brown UniversityAbstract We classify the rational Yangian invariants of the m = 2 toy model of N $$ \mathcal{N} $$ = 4 Yang-Mills theory in terms of generalised triangles inside the amplituhedron A n , k 2 $$ {\mathcal{A}}_{n,k}^{(2)} $$ . We enumerate and provide an explicit formula for all invariants for any number of particles n and any helicity degree k. Each invariant manifestly satisfies cluster adjacency with respect to the Gr(2, n) cluster algebra.http://link.springer.com/article/10.1007/JHEP10(2019)158Scattering AmplitudesSupersymmetric Gauge Theory
spellingShingle Tomasz Łukowski
Matteo Parisi
Marcus Spradlin
Anastasia Volovich
Cluster adjacency for m = 2 Yangian invariants
Journal of High Energy Physics
Scattering Amplitudes
Supersymmetric Gauge Theory
title Cluster adjacency for m = 2 Yangian invariants
title_full Cluster adjacency for m = 2 Yangian invariants
title_fullStr Cluster adjacency for m = 2 Yangian invariants
title_full_unstemmed Cluster adjacency for m = 2 Yangian invariants
title_short Cluster adjacency for m = 2 Yangian invariants
title_sort cluster adjacency for m 2 yangian invariants
topic Scattering Amplitudes
Supersymmetric Gauge Theory
url http://link.springer.com/article/10.1007/JHEP10(2019)158
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AT matteoparisi clusteradjacencyform2yangianinvariants
AT marcusspradlin clusteradjacencyform2yangianinvariants
AT anastasiavolovich clusteradjacencyform2yangianinvariants