Search for New Physics in di-Higgs Decays with H→− γγ and without B-jet Pairs

I present a summary of my work with UC Berkeley's ATLAS collaboration in the search for beyond standard model (BSM) physics in the di-Higgs to di-photon plus X decay channel. I begin with an overview of the group's broader BSM search effort, before focusing on my role of introducing detector level defects into truth level simulated Monte Carlo (MC) events. I then conclude with a brief discussion of my work with the di-Higgs statistical analysis framework, describing the general techniques used to isolate a di-Higgs signal from background and explaining my role in the sensitivity analysis of the program.