Dark Matter in scalar Sp(\( \mathcal{N} \)) gauge dynamics


We consider a model with Sp dark gauge group and a scalar field in the fundamental representation, which leads to two co-stable DM candidates at the perturbative level thanks to a global U(1) accidental symmetry. After gauge confinement at low energy scale, only one of the two candidates is still stable. We compute the DM relic abundance by solving the Boltzmann equations numerically. The presence of light dark glueballs gives extra cosmological effects and can affect Higgs physics. We study the DM phenomenology, providing the predictions for direct and indirect detection (including the Sommerfeld enhancement). We show that the model predicts a slightly suppressed indirect detection cross section in comparison to the usual WIMPs paradigm.

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Landini, G., Wang, J. Dark Matter in scalar Sp(\( \mathcal{N} \)) gauge dynamics. J. High Energ. Phys. 2020, 167 (2020). https://doi.org/10.1007/JHEP06(2020)167

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  • Beyond Standard Model
  • Gauge Symmetry
  • Cosmology of Theories beyond the SM