Abstract
We analyse confining gauge theories where the 750 GeV di-photon resonance is a composite techni-pion that undergoes anomalous decays into SM vectors. These scenarios naturally contain accidentally stable techni-pions Dark Matter candidates. The di-photon resonance can acquire a larger width by decaying into Dark Matter through the CP-violating θ-term of the new gauge theory reproducing the cosmological Dark Matter density as a thermal relic.
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Redi, M., Strumia, A., Tesi, A. et al. Di-photon resonance and Dark Matter as heavy pions. J. High Energ. Phys. 2016, 78 (2016). https://doi.org/10.1007/JHEP05(2016)078
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DOI: https://doi.org/10.1007/JHEP05(2016)078