Dark matter/ new physics searches at BESIII
February 08, 2021
Many new physics models beyond the Standard Model, motivated by the recent astrophysical anomalies, include the possibility of several new types of light weak-interacting particles. Typical models, such as Next-to-Minimal Supersymmetric Standard Model and Hidden Dark-sector Model, predict the light Higgs and dark bosons, respectively. The masses of these particles are expected to be a few GeV and thus making them accessible at BESIII. BESIII has recently explored the possibility of light Higgs and dark bosons in several decay modes using the data-sets collected at $J/\psi$, $\psi(3686)$ and $\psi(3770)$ resonances. The $J/\psi$ data have further utilized to search for invisible decays of light vector ($V=\omega, \phi$) and pseudo-scalar ($P=\eta, \eta'$) mesons via $J/\psi \to VP$ decays. This report summarizes the recent results of the BESIII experiment on these new physics topics.
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