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Browsing by Author "Orta, Andrea"
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Towards the Amplituhedron Volume
Ferro, Livia; Lukowski, Tomasz; Orta, Andrea; Parisi, Matteo (2016-03-03)It has been recently conjectured that scattering amplitudes in planar N=4 super Yang-Mills are given by the volume of the (dual) amplituhedron. In this paper we show some interesting connections between the tree-level ... -
Tree-level scattering amplitudes from the amplituhedron
Ferro, Livia; Lukowski, Tomasz; Orta, Andrea; Parisi, Matteo (2017-06-07)A central problem in quantum field theory is the computation of scattering amplitudes. However, traditional methods are impractical to calculate high order phenomenologically relevant observables. Building on a few decades ... -
Yangian Symmetry for the Tree Amplituhedron
Ferro, Livia; Lukowski, Tomasz; Orta, Andrea; Parisi, Matteo (2017-06-29)Tree-level scattering amplitudes in planar N=4 super Yang-Mills are known to be Yangian-invariant. It has been shown that integrability allows to obtain a general, explicit method to find such invariants. The uplifting of ...