We give a comprehensive review of recent developments on using the pure spinor
formalism to compute massless superstring scattering amplitudes at tree level. The main …

The purpose of this review is to bridge the gap between a standard course in quantum field
theory and recent fascinating developments in the studies of on-shell scattering amplitudes …

We present an identity satisfied by the kinematic factors of diagrams describing the tree
amplitudes of massless gauge theories. This identity is a kinematic analog of the Jacobi …

Providing a comprehensive, pedagogical introduction to scattering amplitudes in gauge
theory and gravity, this book is ideal for graduate students and researchers. It offers a …

We review recent progress and future prospects for harnessing powerful tools from
theoretical high-energy physics, such as scattering amplitudes and effective field theory, to …

We present a compact formula for the complete tree-level S-matrix of pure Yang-Mills and
gravity theories in arbitrary spacetime dimensions. The new formula for the scattering of n …

We present new recursion relations for tree amplitudes in gauge theory that give very
compact formulas. Our relations give any tree amplitude as a sum over terms constructed …

A bstract In a recent note we presented a compact formula for the complete tree-level S-
matrix of pure Yang-Mills and gravity theories in arbitrary spacetime dimension. In this paper …

A bstract The tree-level S-matrix of Einstein's theory is known to have a representation as an
integral over the moduli space of punctured spheres localized to the solutions of the …

One-loop amplitudes of gluons in N= 4 gauge theory can be written as linear combinations
of known scalar box integrals with coefficients that are rational functions. In this paper we …