dc.contributor.author | Damgaard, David | |
dc.contributor.author | Ferro, Livia | |
dc.contributor.author | Lukowski, Tomasz | |
dc.contributor.author | Parisi, Matteo | |
dc.date.accessioned | 2019-08-22T15:12:58Z | |
dc.date.available | 2019-08-22T15:12:58Z | |
dc.date.issued | 2019-08-08 | |
dc.identifier.citation | Damgaard , D , Ferro , L , Lukowski , T & Parisi , M 2019 , ' The Momentum Amplituhedron ' , Journal of High Energy Physics (JHEP) , vol. 2019 , no. 8 , 42 . https://doi.org/10.1007/JHEP08(2019)042 | |
dc.identifier.issn | 1126-6708 | |
dc.identifier.other | ORCID: /0000-0002-4159-3573/work/62751244 | |
dc.identifier.other | ORCID: /0000-0001-9933-0584/work/62751256 | |
dc.identifier.uri | http://hdl.handle.net/2299/21628 | |
dc.description.abstract | In this paper we define a new object, the momentum amplituhedron, which is the long sought-after positive geometry for tree-level scattering amplitudes in N = 4 super Yang-Mills theory in spinor helicity space. Inspired by the construction of the ordinary amplituhedron, we introduce bosonized spinor helicity variables to represent our external kinematical data, and restrict them to a particular positive region. The momentum amplituhedron M n,k is then the image of the positive Grassmannian via a map determined by such kinematics. The scattering amplitudes are extracted from the canonical form with logarithmic singularities on the boundaries of this geometry. | en |
dc.format.extent | 377922 | |
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 Momentum Amplituhedron | en |
dc.contributor.institution | Mathematics and Theoretical Physics | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85070359774&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.1007/JHEP08(2019)042 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |