The standard model of particle physics is a theory that describes the electromagnetic, weak, and strong nuclear forces, as well as the particles that make up matter. It incorporates the ideas of quantum mechanics and special relativity to explain how particles interact with each other. The standard model includes fundamental particles such as quarks, leptons, and gauge bosons, and has been very successful in predicting the outcomes of experiments in particle physics. However, it does not explain all phenomena in the universe, such as gravity and dark matter, so researchers are continually working to extend or modify the standard model to account for these mysteries.