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Crude estimates are made of the branching ratios and pair productioncross-section for our previously proposed bound state S of six top and sixantitop quarks identified with the diphoton excess recently observed in ATLASand CMS. We estimate the pair production cross section to be approximately 12times that for fourth family quarks. Hence we predict $\sigma(pp \rightarrow SS+ anything) \approx 2$ pb at 13 TeV and an increase by a factor 10 over thecross section at 8 TeV. Crude estimates of the main branching ratios relativeto the diphoton decay give $\Gamma(S\rightarrow \gamma+\gamma) \propto 1$,$\Gamma(S\rightarrow t + \bar{t})\propto 378$, $\Gamma(S \rightarrowgluon+gluon)\propto 117$, $\Gamma(S\rightarrow Higgs+Higgs)\propto 15$,$\Gamma(S\rightarrow W+W)\propto 30$ and $\Gamma(S\rightarrow Z+Z) = 15$.  These estimates are consistent with the LHC bounds at 8 TeV within a factor1.25. We expect the $S \rightarrow \gamma\gamma$ events to be produced togetherwith another S resonance decaying typically into top-antitop or gluon-gluonjets.

Production and Decay of 750 Gev state of 6 top and 6 anti top quarks