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We argue that the possible new heavy boson resonance of 750 GeV is an ideal candidate as a twin particle of the 125 GeV scalar boson, both emerging from the large mixing of the scalar toponium and scalar gluonium. Assuming that the mixing of the pseudoscalar toponium and pseudoscalar gluonium is small, just like the mixing of the light pseudoscalar quarkonium and pseudoscalar gluonium, the resulting new physical pseudoscalars are lighter than the scalar twins. The discovery of the 750 GeV resonance is possible only with a much more data than for the 125 GeV resonance since only the gluonium component is detectable above the toponium threshold. The CMS announced recently a possible new boson resonance with the mass of roughly 30 GeV in the di-muon channel search. The resonance in the di-muon channel with a similar mass and width was also reported by A. Heister in 2016 in the analysis of the old LEP ALEPH data. If real, this resonance can be interpreted within the plain QCD as a lighter twin of the pseudoscalar toponium and gluonium mixture. The absence of the Higgs scalar should not be considered an obstacle because the nonsingular theory with the UV cutoff fixed by the weak boson masses is superior to the Standard Model since it solves a few SM fundamental problems such as: (1) light neutrinos, (2) dark matter particles to be the heavy Majorana neutrinos and (3) broken lepton and baryon numbers.
We propose that the 750 GeV resonance, presumably observed in the early LHC Run 2 data, could be a heavy composite axion that results from condensation of a hypothetical quark in a high-colour representation of conventional QCD. The model, motivated
Motivated by the recent diphoton excesses reported by both ATLAS and CMS collaborations, we suggest that a new heavy spinless particle is produced in gluon fusion at the LHC and decays to a couple of lighter pseudoscalars which then decay to photons.
Non-observation of superpartners of the Standard Model particles at the early runs of the LHC provide strong motivation for an $R$-symmetric minimal supersymmetric Standard Model, or MRSSM. This model also comes with a pair of extra scalars which cou
Motivated by the recent LHC discovery of the di-photon excess at the invariant mass of ~ 750 GeV, we study the prospect of investigating the scalar resonance at a future photon-photon collider. We show that, if the di-photon excess observed at the LH
We examine the scenario of a warped extra dimension containing bulk SM fields in light of the observed diphoton excess at 750 GeV. We demonstrate that a spin-2 graviton whose action contains localized kinetic brane terms for both gravity and gauge fi