1.4k citations · 14.7k across the 88 of their papers we have counts for
3 papers · 1 filter
Anomalous Dimensions of Effective Theories from Partial Waves
Pietro Baratella, Clara Fernandez, Benedict von Harling +1
On-shell amplitude methods have proven to be extremely efficient for calculating anomalous dimensions. We further elaborate on these methods to show that, by the use of an angular…
Renormalization of Higher-Dimensional Operators from On-shell Amplitudes
Pietro Baratella, Clara Fernandez, Alex Pomarol
On-shell amplitude methods allow to derive one-loop renormalization effects from just tree-level amplitudes, with no need of loop calculations. We derive a simple formula to obtain…
The Axion Mass from 5D Small Instantons
Tony Gherghetta, Valentin V. Khoze, Alex Pomarol +1
We calculate a new contribution to the axion mass that arises from gluons propagating in a 5th dimension at high energies. By uplifting the 4D instanton solution to five dimensions…