Scattering Amplitudes at higher orders in QCD

by Dr Anurag Tripathi (IIT Hyderabad)

Thursday 16 May 2024, 11:00 → 13:00 Europe/Zurich

Aula Polvani (Università degli Studi di Milano)

Scattering amplitudes involving multiple partons are plagued with infrared singularities. The soft singularities

of the amplitudes are captured by the soft function which is defined as the vacuum expectation value of Wilson

line correlators. Renormalization properties of soft function allows us to write it as an exponential of the finite

soft anomalous dimension. An efficient way to study the soft function is through a set of Feynman diagrams

known as Cwebs (webs). In this talk I will discuss the progress that has been made by our group in the last

couple of years in understanding the structure and the building blocks of Cwebs

Milan-2024-Talk.pdf