Magno Machado LIGO as a probe of Dark Sectors Fei Huang, Veronica Sanz, Jing Shu, Xiao Xue Hide abstract | Show figures | Show BibTeX | Show discussion | View PDF | 2102.03155v2 We show how current LIGO data is able to probe interesting theories beyond the Standard Model, particularly Dark Sectors where a Dark Higgs triggers symmetry breaking via a first-order phase transition. We use publicly available LIGO O2 data to illustrate how these sectors, even if disconnected from the Standard Model, can be probed by Gravitational Wave detectors. We link the LIGO measurements with the model content and mass scale of the Dark Sector, finding that current O2 data is testing a broad set of scenarios where the breaking of SU(N)SU(N) theories with NfNf fermions is triggered by a Dark Higgs at scales Λ≃108−109Λ≃108−109 GeV with reasonable parameters for the scalar potential. Authors' comments: v2: Affiliation corrected, references added.9 pages, 3 figures