Heavy vector partners of the light composite Higgs

If the Higgs boson H(125) is a composite due to new strong interactions at high energy, it has spin-one partners, rho(H) and a(H), analogous to the rho and a(1) mesons of QCD. These bosons are heavy, their mass determined by the strong interaction scale. The strongly interacting particles light enough for rho(H) and a(H) to decay to are the longitudinal weak bosons V-L= W-L, Z(L) and the Higgs boson H. These decay signatures are consistent with resonant diboson excesses recently reported near 2TeVby ATLAS and CMS. We calculate sigma x BR (rho(H) -> VV) = fewfband sigma x BR(a(H) -> VH) = 0.5-1fbat root s= 8 TeV, increasing by a factor of 5-7 at 13 TeV. Other tests of the hypothesis of the strong-interaction nature of the diboson resonances are suggested. (C) 2015 The Authors. Published by Elsevier B. V.