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83 papers
Generalized Color Orderings: CEGM Integrands and Decoupling Identities
Freddy Cachazo, Nick Early, Yong Zhang
In a recent paper, we defined generalized color orderings (GCO) and Feynman diagrams (GFD) to compute color-dressed generalized biadjoint amplitudes. In this work, we study the Cac…
Color-Dressed Generalized Biadjoint Scalar Amplitudes: Local Planarity
Freddy Cachazo, Nick Early, Yong Zhang
The biadjoint scalar theory has cubic interactions and fields transforming in the biadjoint representation of . Amplitudes are "colo…
Connecting Scalar Amplitudes using The Positive Tropical Grassmannian
Freddy Cachazo, Bruno Giménez Umbert
The biadjoint scalar partial amplitude, , can be expressed as a single integral over the positive tropical Grassmannian thus producing a Global Schwinge…
Biadjoint Scalars and Associahedra from Residues of Generalized Amplitudes
Freddy Cachazo, Nick Early
In the Grassmannian formulation of the S-matrix for planar Super Yang-Mills, scattering amplitudes for negative and positive helicity gluons…
Smoothly Splitting Amplitudes and Semi-Locality
Freddy Cachazo, Nick Early, Bruno Umbert
In this paper, we study a novel behavior developed by certain tree-level scalar scattering amplitudes, including the biadjoint, NLSM, and special Galileon, when a subset of kinemat…
Diagonally Embedded Sets of 's in : Is There a Critical Value of ?
Freddy Cachazo
The tropical Grassmannian is known to be the moduli space of unrooted metric trees with leaves. A positive part can be defined for each of the …