55 citations · 63 across the 3 of their papers we have counts for
8 papers · 1 filter
Searching for Kerr in the 2PM amplitude
Rafael Aoude, Kays Haddad, Andreas Helset
The classical scattering of spinning objects is well described by the spinor-helicity formalism for heavy particles. Using these variables, we derive spurious-pole-free, all-spin o…
Tidal effects for spinning particles
Rafael Aoude, Kays Haddad, Andreas Helset
Expanding on the recent derivation of tidal actions for scalar particles, we present here the action for a tidally deformed spin- particle. Focusing on operators containing tw…
Tidal effects in quantum field theory
Kays Haddad, Andreas Helset
We apply the Hilbert series to extend the gravitational action for a scalar field to a complete, non-redundant basis of higher-dimensional operators that is quadratic in the scalar…
The double copy for heavy particles
Kays Haddad, Andreas Helset
We show how to double-copy Heavy Quark Effective Theory (HQET) to Heavy Black Hole Effective Theory (HBET) for spin . In particular, the double copy of spin- HQET with…
On-shell heavy particle effective theories
Rafael Aoude, Kays Haddad, Andreas Helset
We introduce on-shell variables for Heavy Particle Effective Theories (HPETs) with the goal of extending Heavy Black Hole Effective Theory to higher spins and of facilitating its a…
Soft Theorems and the KLT-Relation
Rafael Aoude, Andreas Helset
We find new relations for the non-universal part of the Yang-Mills amplitudes by combining the KLT-relation and the soft behavior of gauge and gravity amplitudes. We also extend th…