DZero Detector showing the large liquid argon calorimeter. The DZero Experiment consists of a worldwide collaboration of scientists conducting research on the fundamental nature of matter. The experiment is located at the high-energy accelerator, the Tevatron Collider, at the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, USA. The research is focused on precise studies of interactions of protons and antiprotons at the highest available energies. It involves an intense search for subatomic clues that reveal the character of the building blocks of the universe.