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12 papers · 2 filters
Lectures on differential equations for Feynman integrals
Johannes M. Henn
Over the last year significant progress was made in the understanding of the computation of Feynman integrals using differential equations. These lectures give a review of these de…
Anomalous solutions to the strong CP problem
Anson Hook
We present a new mechanism for solving the strong CP problem using a Z2 discrete symmetry and an anomalous U(1) symmetry. A Z2 symmetry is used so that two gauge groups have the sa…
Soft Collinear Effective Theory for Heavy WIMP Annihilation
Martin Bauer, Timothy Cohen, Richard J. Hill +1
In a large class of models for Weakly Interacting Massive Particles (WIMPs), the WIMP mass lies far above the weak scale . This work identifies universal Sudakov-type loga…
The three-loop cusp anomalous dimension in QCD
Andrey Grozin, Johannes M. Henn, Gregory P. Korchemsky +1
We present the full analytic result for the three-loop angle-dependent cusp anomalous dimension in QCD. With this result, infrared divergences of planar scattering processes with m…
Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in quark-antiquark collisions
Fabrizio Caola, Johannes M. Henn, Kirill Melnikov +2
Knowledge of two-loop QCD amplitudes for processes is important for improving the theoretical description of four-lepton pro…
Unbroken at a 100 TeV collider
Anson Hook, Andrey Katz
A future 100 TeV pp collider will explore energies much higher than the scale of electroweak (EW) symmetry breaking. In this paper we study some of the phenomenological consequence…