hide
Free keywords:
High Energy Physics - Theory, hep-th
Abstract:
Recent progress on scattering amplitudes in super Yang--Mills and superstring
theory benefitted from the use of multiparticle superfields. They universally
capture tree-level subdiagrams, and their generating series solve the
non-linear equations of ten-dimensional super Yang--Mills. We provide
simplified recursions for multiparticle superfields and relate them to earlier
representations through non-linear gauge transformations of their generating
series. In this work we discuss the gauge transformations which enforce their
Lie symmetries as suggested by the Bern--Carrasco--Johansson duality between
color and kinematics. Another gauge transformation due to Harnad and Shnider is
shown to streamline the theta-expansion of multiparticle superfields, bypassing
the need to use their recursion relations beyond the lowest components. The
findings of this work tremendously simplify the component extraction from
kinematic factors in pure spinor superspace.
