31 citations · 31 across the 15 of their papers we have counts for
5 papers · 1 filter
Uniqueness of MHV Gravity Amplitudes
Joris Koefler, Umut Oktem, Shruti Paranjape +2
We investigate MHV tree-level gravity amplitudes as defined on the spinor-helicity variety. Unlike their gluon counterparts, the gravity amplitudes do not have logarithmic singular…
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…
New Soft Theorems for Two-Scalar Sigma Models
Karol Kampf, Jiri Novotny, Mikhail Shifman +1
In this paper, we study the scattering amplitudes and soft theorems for the sigma models with two scalars. We show that if the particles are Goldstone bosons, then you necessarily…
Hidden Amplitude Zeros From Double Copy
Christoph Bartsch, Taro V. Brown, Karol Kampf +3
Recently, Arkani-Hamed et al. proposed the existence of zeros in scattering amplitudes in certain quantum field theories including the cubic adjoint scalar theory Tr(), the $S…
An All-loop Soft Theorem for Pions
Christoph Bartsch, Karol Kampf, Jiri Novotny +1
In this letter, we discuss a generalization of the Adler zero to loop integrands in the planar limit of the non-linear sigma model (NLSM). While possible to maintain at one…