Electromagnetic Shower Reconstruction for Dark Matter Searches at SBND

The Short-Baseline Near Detector (SBND) is a Liquid Argon Time Projection Chamber (LArTPC) neutrino detector located on the Booster Neutrino Beam (BNB) at Fermilab. SBND is the near detector of Fermilab's Short-Baseline Neutrino program, and will precisely constrain the flux and neutrino-argon interaction systematic uncertainties for a world-leading search of eV-scale sterile neutrino oscillations. In addition, SBND's proximity to the beam target allows it to conduct a rich program of neutrino interaction measurements as well as novel searches for physics beyond the Standard Model of particle physics (BSM). There are several theories that suggest that dark matter candidates can be produced in the BNB. In this poster, I present a study of electromagnetic "shower"-like signatures of dark matter interactions in SBND.