As everybody of you may know at LHC they found this probable resonance (https://cds.cern.ch/record/2114808, https://cds.cern.ch/record/2114853?ln=en). It may be a scalar or a KK graviton mode. Now, checking arxiv, one can basically find a lot of models inherent scalars and pseudoscalars trying to explain this resonance.
I am asking: theoretically supposing this resonance is true, can it really be a KK graviton mode? In which model can it produce a diphoton? By coupling to what?
(It's a purely speculative question, but still I would like to understand if anyone has thought to KK graviton models.)