Millicharged Particles at the Short Baseline Near Detector at Fermilab

We explore using the Short Baseline Near Detector (SBND) at Fermilab to perform a search for millicharged particles (mCPs). Millicharged particles are hypothetical new particles that have a fractional charge compared to the electron and may make up a portion of the dark matter in the universe. SBND is a Liquid Argon Time Projection Chamber (LArTPC) placed in the Booster Neutrino Beam at Fermilab. Such detectors have previously demonstrated the ability to search for mCPs, and in this talk, we will present the projected flux of mCPs in SBND and show the region of the mCP parameter space that SBND will be able to probe.