Landau Singularities and Symbology: One- and Two-loop MHV Amplitudes in SYM Theory

Tristan Dennen, Marcus Spradlin, Anastasia Volovich

We apply the Landau equations, whose solutions parameterize the locus of possible branch points, to the one- and two-loop Feynman integrals relevant to MHV amplitudes in planar $\m…