  The interplay between the confinement potential and electron-electron
interactions causes reconstructions of Quantum Hall edges. We study the
consequences of this edge reconstruction for the relaxation of hot electrons
injected into integer quantum Hall edge states. In translationally invariant
edges, the relaxation of hot electrons is governed by three-body collisions
which are sensitive to the electron dispersion and thus to reconstruction
effects. We show that the relaxation rates are significantly altered in
different reconstruction scenarios.
