Commissioning the DarkLight Experiment

The search for dark matter holds considerable interest in the physics community. Many experiments have searched for evidence of beyond the standard model physics in the dark sector, but so far it has proven elusive. For the nuclear physics community the concept of an MeV-scale dark boson has garnered considerable attention. Of particular recent interest is an excess observed in the decay of excited states of ⁴He, ⁸Be and ¹²C, which could be explained by a 17 MeV dark boson. The DarkLight experiment will perform a model-independent search for this potential low mass force carrier at the TRIUMF ARIEL superconducting e-linac. DarkLight will perform this search by impinging a 30-50 MeV electron beam on a tantalum target and search for an excess in the 10-20 MeV/c² e⁺e^- invariant mass range. This talk will focus on the recent installation and commissioning of the DarkLight experiment in summer 2025.