Dark Matter Searches at Coherent CAPTAIN-Mills

Coherent CAPTAIN-Mills(CCM) experiment is a 10 ton Liquid Argon scintillation detector experiment located at the Los Alamos National Laboratory(LANL). The Los Alamos Neutron Science Center(LANSCE) provides an 800 MeV proton beam on a tungsten target which is a copious source of neutrinos from stopped pions, as well as, possibly, new particles belonging to Dark Sector of particle physics with masses in the range of keV to MeV. This sub-GeV Dark Matter then coherently scatters off the Ar nuclei to produces scintillation light. The CCM detector is equipped with photomultiplier tubes(PMTs) to capture the scintillation light. A prototype detector instrumented with 120 PMTs, CCM120 operated between 2018 and 2019, demonstrating the potential of such a detector for the search of Sub-GeV dark matter. CCM's first engineering run has already achieved sensitivity to previously unexplored parameter space of light dark matter (LDM) models with a baryonic vector portal. The upgraded CCM200 detector, with 200 PMTs, improved shielding and LAr filtration and purification system is now taking beam data. In this talk the status of the experiment, as well as results from CCM120 and expected sensitivity to new physics of CCM200 will be presented.