2 papers
hep-ph2020
Locally finite two-loop amplitudes for off-shell multi-photon production in electron-positron annihilation
Charalampos Anastasiou, Rayan Haindl, George Sterman +2
We study the singularity structure of two-loop QED amplitudes for the production of multiple off-shell photons in massless electron-positron annihilation and develop counterterms t…
hep-th2019
deformations and integrable spin chains
Enrico Marchetto, Alessandro Sfondrini, Zhou Yang
We consider current-current deformations that generalise ones, and show that they may be also introduced for integrable spin chains. In analogy with the integrable QFT s…