Contribution of dimension-six bosonic operators to Higgs decay into two   photons at one-loop level
  The decay of the Higgs boson into two photons is examined in a model-independent way within the effective Lagrangian approach. Contribution of one-loop diagrams including SU(2) x U(1) invariant dimension-six bosonic operators is evaluated explicitly. The calculation is intended to fill a gap that exists in the current literature of the subject. 
Jiri Horejsi, Karol Kampf