6 papers
Geometric Landau Analysis and Symbol Bootstrap
Dmitry Chicherin, Johannes Henn, Elia Mazzucchelli +3
We investigate how the positive geometry framework for loop integrands in super Yang-Mills theory constrains the structure of the integrated answers. This is done…
All-loop Leading Singularities of Wilson Loops
Taro V. Brown, Johannes M. Henn, Elia Mazzucchelli +1
We study correlators of null, -sided polygonal Wilson loops with a Lagrangian insertion in the planar limit of the supersymmetric Yang-Mills theory. This finite obs…
Two-loop four-point amplitudes on the Coulomb branch of super Yang-Mills
Wojciech Flieger, Johannes Henn, Anders Schreiber +1
We explore scattering amplitudes on the Coulomb branch of maximally supersymmetric Yang-Mills theory. We introduce a particular pattern of scalar vacuum expectation values that all…
Positivity properties of five-point two-loop Wilson loops with Lagrangian insertion
Dmitry Chicherin, Johannes Henn, Jaroslav Trnka +1
In this paper we discuss the geometric integrand expansion of the five-point Wilson loop with one Lagrangian insertion in maximally supersymmetric Yang-Mills theory. We construct t…
Positivity properties of scattering amplitudes
Johannes Henn, Prashanth Raman
We investigate positivity properties in quantum field theory (QFT). We provide evidence,and in some case proofs, that many building blocks of scattering amplitudes, and in some cas…
Coulomb Branch Amplitudes from a Deformed Amplituhedron Geometry
Nima Arkani-Hamed, Wojciech Flieger, Johannes M. Henn +2
The Amplituhedron provides, via geometric means, the all-loop integrand of scattering amplitudes in maximally supersymmetric Yang-Mills theory. Unfortunately, dimensional regulariz…