Back to 1974: The Q-onium

We show that the 750 GeV di-photon excess could be explained by the Q-onium system of a new QCD-like theory with fermions vectorial under the SM. Beside the spin-0 di-photon singlet this scenario predicts almost degenerate colored scalars and spin-1 resonances analogous to the J/Ψ in QCD. All these...

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Bibliographic Details
Published in:Physics letters. B 2016-09, Vol.760 (C), p.158-163
Main Authors: Kamenik, Jernej F., Redi, Michele
Format: Article
Language:English
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Summary:We show that the 750 GeV di-photon excess could be explained by the Q-onium system of a new QCD-like theory with fermions vectorial under the SM. Beside the spin-0 di-photon singlet this scenario predicts almost degenerate colored scalars and spin-1 resonances analogous to the J/Ψ in QCD. All these states are within the reach of the LHC. An apparent large width can be explained as due to production of excited states with splitting Δm∼Γ.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2016.06.060