New Ways to Higher Points

Session

Field Theory Methods

2

29 Sept 2025, 10:30

HU Berlin, Campus Adlershof

Conveners

Field Theory Methods

• V. Chestnov
• B. Eden

1. Algebraic Structures of Higher-Point Amplitudes

Dr V. Chestnov

29/09/2025, 10:30

Perturbative higher-point scattering amplitudes present both conceptual and computational challenges. Their Feynman integral building blocks rapidly grow in complexity in multi-scale kinematics, motivating the use of new tools from computational algebraic geometry. Viewing these integrals as twisted period integrals further reveals deep connections to the theory of D-modules and modern...

2. Correlation functions in N=2 superconformal long-quiver theories

Dr A. Testa

29/09/2025, 11:10

In this talk, I will analysis special correlation functions of chiral primary half-BPS operators in four-dimensional N=2 superconformal circular quiver theories. Supersymmetric localization reduces these observables to matrix integrals which, in the planar limit, can be expressed as certain Fredholm determinants, known in this context as generalized Tracy–Widom distribution. This...

4. Associators as calculational tools for scattering amplitudes

Dr J. Brödel

29/09/2025, 12:20

5. Genus-one coactions from zeta generators

Dr A. Kleinschmidt

29/09/2025, 13:00

The motivic coaction of multiple zeta values and multiple polylogarithms encodes both structural insights on and computational methods for scattering amplitudes in a variety of quantum field theories and in string theory. I will report on work in progress with Franziska Porkert and Oliver Schlotterer where we propose coaction formulae for iterated integrals over holomorphic Eisenstein series...

29. Analytic Evaluation of Feynman Integrals using Mellin-Barnes Representation

Dr S. Banik

29/09/2025, 13:40

6. Discussion

NN

29/09/2025, 15:00