4 papers
Landau Analysis of One-Cycle Negative Geometries
Shruti Paranjape, Marcos Skowronek, Marcus Spradlin +2
We use geometric Landau analysis to determine the singularity structure of four-point, one-cycle negative geometries in super-Yang-Mills theory, which represent cer…
Cluster Bootstrap for Cosmological Correlators
Shruti Paranjape, Marcos Skowronek, Marcus Spradlin +2
We show that cosmological wavefunction coefficients associated with -site chain and loop graphs for a cubic scalar theory in de Sitter spacetime have symbol alphabets given by s…
Cuts and Contours
Carolina Figueiredo, Marcos Skowronek
The traditional formulation of string amplitudes via worldsheet integrals provides a parametrization of the moduli space that fails to expose the complete singularity structure of…
Large deformations of Tr() and the world at infinity
Shruti Paranjape, Marcos Skowronek, Marcus Spradlin +1
The amplitudes of the non-linear sigma model can be obtained from those of Tr() theory by sending the kinematic (Mandelstam) variables to infinity in a certain direction. In…