Searches for narrow resonances decaying to pairs of boosted HH bosons

We present a search for narrow resonances production in gluon-gluon fusion followed by a decay into two Higgs bosons at 8 and 13 TeV. Decays of Higgs bosons into bottom quark pairs are considered for resonance massesabove 1 TeV, where each Higgs boson is produced with large momentum, and thehadronization products of the pair of bottom quarks can usually be reconstructed assingle large jets. The background from multijet and its events is significantly reducedby applying requirements related to the flavor of the jet, its mass, and its substructure.The signal is identified as a peak in the dijet invariant mass spectrum of the remain-ing background events.