dc.contributor.author | Ferro, Livia | |
dc.contributor.author | Łukowski, Tomasz | |
dc.date.accessioned | 2023-05-24T09:30:02Z | |
dc.date.available | 2023-05-24T09:30:02Z | |
dc.date.issued | 2023-05-22 | |
dc.identifier.citation | Ferro , L & Łukowski , T 2023 , ' The Loop Momentum Amplituhedron ' , Journal of High Energy Physics (JHEP) , vol. 2023 , no. 5 , 183 . https://doi.org/10.1007/jhep05(2023)183 | |
dc.identifier.issn | 1126-6708 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2210.01127v1 | |
dc.identifier.other | Jisc: 1099813 | |
dc.identifier.other | publisher-id: jhep05(2023)183 | |
dc.identifier.other | manuscript: 20934 | |
dc.identifier.other | arxiv: 2210.01127 | |
dc.identifier.other | ORCID: /0000-0002-4159-3573/work/135802711 | |
dc.identifier.other | ORCID: /0000-0001-9933-0584/work/135802712 | |
dc.identifier.uri | http://hdl.handle.net/2299/26359 | |
dc.description | © 2023 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), https://creativecommons.org/licenses/by/4.0/ | |
dc.description.abstract | In this paper we focus on scattering amplitudes in maximally supersymmetric Yang-Mills theory and define a long sought-after geometry, the loop momentum amplituhedron, which we conjecture to encode tree and (the integrands of) loop amplitudes in spinor helicity variables. Motivated by the structure of amplitude singularities, we define an extended positive space, which enhances the Grassmannian space featuring at tree level, and a map which associates to each of its points tree-level kinematic variables and loop momenta. The image of this map is the loop momentum amplituhedron. Importantly, our formulation provides a global definition of the loop momenta. We conjecture that for all multiplicities and helicity sectors, there exists a canonical logarithmic differential form defined on this space, and provide its explicit form in a few examples. | en |
dc.format.extent | 17 | |
dc.format.extent | 506918 | |
dc.format.extent | 366637 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of High Energy Physics (JHEP) | |
dc.subject | Scattering Amplitudes | |
dc.subject | Supersymmetric Gauge Theory | |
dc.subject | Nuclear and High Energy Physics | |
dc.title | The Loop Momentum Amplituhedron | en |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Mathematics and Theoretical Physics | |
dc.contributor.institution | Department of Engineering and Technology | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85160103707&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.1007/jhep05(2023)183 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |