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Maximal Super-Yang-Mills at Six Loops via Novel Integrand Bootstrap
John Joseph M. Carrasco, Alex Edison, Henrik Johansson
We construct the complete (planar and non-planar) integrand for the six-loop four-point amplitude in maximal super-Yang-Mills. This construction employs new advances that…
Off-Shell Color-Kinematics Duality for Chern-Simons
Maor Ben-Shahar, Henrik Johansson
Many gauge theories possess a hidden duality between color and kinematics in their on-shell scattering amplitudes. An open problem is to formulate an off-shell realization of the d…
Kinematic Hopf Algebra for BCJ Numerators in Heavy-Mass Effective Field Theory and Yang-Mills Theory
Andreas Brandhuber, Gang Chen, Henrik Johansson +2
We present a closed formula for all Bern-Carrasco-Johansson (BCJ) numerators describing -dimensional tree-level scattering amplitudes in a heavy-mass effective field theory with…
Compton Black-Hole Scattering for
Marco Chiodaroli, Henrik Johansson, Paolo Pichini
Quantum scattering amplitudes for massive matter have received new attention in connection to classical calculations relevant to gravitational-wave physics. Amplitude methods and i…
One-loop matrix elements of effective superstring interactions: -expanding loop integrands
Alex Edison, Max Guillen, Henrik Johansson +2
In the low-energy effective action of string theories, non-abelian gauge interactions and supergravity are augmented by infinite towers of higher-mass-dimension operators. We propo…
Next-to-MHV Yang-Mills kinematic algebra
Gang Chen, Henrik Johansson, Fei Teng +1
Kinematic numerators of Yang-Mills scattering amplitudes possess a rich Lie algebraic structure that suggest the existence of a hidden infinite-dimensional kinematic algebra. Expli…