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Amplitudes
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Diagrammatic Tensor Reduction  Jae Goode and Sam Teale
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 ...
Higgs Centre Seminar Room, JCMB
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Classical radiation at one loop  Ingrid Holm
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 warmup for calculating the gravity waveform emitted from two massive scalar black holes. We use the KMOC formalism to set ...
Higgs Centre Seminar Room, JCMB
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Computing DIS coefficient functions at 4loop—Andrea PELLONI
I'll will discuss our recent progress in computing the nonsinglet nf^2 contribution to the DIS coefficient functions at 4loop. 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 ...
Higgs Centre Seminar Room, JCMB
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Gravitational Regge bounds
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 ...
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The oneloop central emission vertex for two gluons in N=4 super YangMills theory—Emmet BYRNE
The oneloop central emission vertex for two gluons in N=4 super YangMills theory
In this talk I will summarise our recent investigation of the 2to4 gluon amplitude in a central NexttoMultiRegge limit, where the two central (in rapidity) gluons are not necessarily strongly ordered in rapidity. I will review ...
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The case of the missing solutions: a biadjoint mystery—Chris WHITE
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 nonperturbative, and previous attempts to double copy nonperturbative solutions of ...
JCMB Lecture Theatre B
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The Cotton Double Copy—Nathan MOYNIHAN
The Cotton Double Copy
I will discuss some aspects of the Cotton double copy, the threedimensional cousin of the Weyl double copy.
Zoom
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Seminar by Ben Page
TBA
Higgs Centre Seminar Room, JCMB
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Seminar by Gang Chen
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 ...
Higgs Centre Seminar Room, JCMB
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YangMills observables: from KMOC to eikonal through EFT—Leonardo DE LA CRUZ
In this talk we present the integrated result of NLO conservative YangMIlls observables in the KMOC formalism. On the other hand, extending a recentlyintroduced framework based on scattering amplitudes and effective field theory (EFT) to consider colourcharged objects, we obtain a conservative Hamiltonian describing the interactions of two charged bodies ...
Higgs Centre Seminar Room, JCMB
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Seminar by Stephen Jones
To be announced
Higgs Centre Seminar Room, JCMB
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