Amplitudes

Tensor reduction appears as a step in many QFT calculations, for instance in the reduction of vacuum Feynman integrals for UV counterterm calculation through methods such as the R*-algorithm. The basis of independent vacuum tensors of rank n grows factorially with n and a naive approach to reduction scales ...

I will discuss the classical limit of the radiation from a system of two massive scalars at one loop in QCD. This is an ongoing calculation, and meant as a warm-up for calculating the gravity waveform emitted from two massive scalar black holes. We use the KMOC formalism to set ...

I'll will discuss our recent progress in computing the non-singlet nf^2 contribution to the DIS coefficient functions at 4-loop. The computation is performed in Mellin space by employing a system of differential equations to generate a finite expansion in Mellin moments. The computation of the Mellin moments via ...

Gravitational Regge bounds I will review the basic assumptions and spell out the arguments that lead to the bound on the Regge growth of gravitational scattering amplitudes. I will discuss the Regge bounds both at fixed transfer momentum and smeared over it. Our basic conclusion is that gravitational scattering amplitudes ...

The one-loop central emission vertex for two gluons in N=4 super Yang-Mills theory In this talk I will summarise our recent investigation of the 2-to-4 gluon amplitude in a central Next-to-Multi-Regge limit, where the two central (in rapidity) gluons are not necessarily strongly ordered in rapidity. I will review ...

A correspondence called the double copy relates quantities in gauge and gravity theories, as well as a novel scalar theory with two types of colour charge (“biadjoint scalar theory”). It is not yet known whether the double copy is fully non-perturbative, and previous attempts to double copy nonperturbative solutions of ...

The Cotton Double Copy I will discuss some aspects of the Cotton double copy, the three-dimensional cousin of the Weyl double copy.

TBA

HEFT kinematic algebra, heavy double copy and classical gravitational scattering In this talk, I will introduce the kinematic algebra and a new double copy in heavy effective field theory (HEFT). I will also present the application of the novel double copy to classical gravitational scattering. Recently we proposed a new ...

In this talk we present the integrated result of NLO conservative Yang-MIlls observables in the KMOC formalism. On the other hand, extending a recently-introduced framework based on scattering amplitudes and effective field theory (EFT) to consider colour-charged objects, we obtain a conservative Hamiltonian describing the interactions of two charged bodies ...