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arXiv · 1512.06732

Diphoton and Dark Matter from Cascade Decay

Fa Peng Huang·Chong Sheng Li·Ze Long Liu·Yan Wang
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Abstract

We propose a simplified model to study the possible new heavy diphoton resonance from cascade decay of a heavier particle at colliders, which may be related to the dark matter or other new physics beyond the standard model. Model-independent constraints and predictions on the allowed couplings for generating the observed diphoton data are studied in detail. We demonstrate that this scenario can be tested by the possible four-photon signal or the $WW/ZZ/Zγ$ resonances. Meanwhile, this cascade decay scenario also provides us with the dark matter candidates, which is consistent with the observed dark matter relic density.

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Fa Peng Huang, Chong Sheng Li, Ze Long Liu, Yan Wang. 2016-09-26. Diphoton and Dark Matter from Cascade Decay. https://doi.org/10.1103/physrevd.94.055025

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