The search for dark matter particles at the LHC is one of its primary objectives. Well-motivated scenarios, such as the Hidden Abelian Higgs Model (HAHM) and Dark Supersymmetry (Dark-SUSY) scenarios predict the production of dark sector particles. These particles interact weakly with the Standard Model (SM) and, due to their interactions, can decay into SM particles. A key signature of these searches is the decay of such particles into a pair of muons (dimuons) displaced from the primary interaction vertex. Results obtained from the Run-2 and Run-3 data-taking campaigns at CMS have set limits on the production of these particles. These results are presented as a compilation of dark sector searches conducted in CMS, providing a comprehensive overview of current constraints. Additionally, the implications of these findings for future analyses are discussed.

The search for dark matter particles at the LHC is one of its primary objectives. Well-motivated scenarios, such as the Hidden Abelian Higgs Model (HAHM) and Dark Supersymmetry (Dark-SUSY) scenarios predict the production of dark sector particles. These particles interact weakly with the Standard Model (SM) and, due to their interactions, can decay into SM particles. A key signature of these searches is the decay of such particles into a pair of muons (dimuons) displaced from the primary interaction vertex. Results obtained from the Run-2 and Run-3 data-taking campaigns at CMS have set limits on the production of these particles. These results are presented as a compilation of dark sector searches conducted in CMS, providing a comprehensive overview of current constraints. Additionally, the implications of these findings for future analyses are discussed.