3 papers
hep-th2025
New Recursions for the Canonical Scalar-Scaffolded Yang-Mills Amplitude
Jeffrey V. Backus
The recently-developed "scalar-scaffolding" formulation of gluon amplitudes casts the Yang-Mills (YM) amplitude as a well-defined Laurent series expansion in scalar variables, vali…
hep-th2025
Emergence of Unitarity and Locality from Hidden Zeros at One-Loop Order
Jeffrey V. Backus, Laurentiu Rodina
Recent investigations into the geometric structure of scattering amplitudes have revealed the surprising existence of "hidden zeros": secret kinematic loci where tree-level amplitu…
hep-th2025
Surface Gauge Invariance, Soft Limits and the Transmutation of Gluons into Scalars
Jeffrey V. Backus, Carolina Figueiredo
Over the past year, the "scalar-scaffolding" formalism has revealed a number of new features of gluon amplitudes. In this paper, we leverage these developments to study two distinc…