Gluons and gravitons at one loop from ambitwistor strings
Gluons and gravitons at one loop from ambitwistor strings
A bstract We present new and explicit formulae for the one-loop integrands of scattering amplitudes in non-supersymmetric gauge theory and gravity, valid for any number of particles. The results exhibit the colour-kinematics duality in gauge theory and the double-copy relation to gravity, in a form that was recently observed in …