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| The Physics Department resides at 1118 E. 4th Street, in the heart of campus. |
The predictions of the Standard Model are in excellent agreement with experiment. Yet many interesting questions remain. What determines the masses of the quarks and leptons, and the other parameters in the Standard Model? Why are there three "families" of quarks and leptons? How can a quantum theory of gravity be incorporated? What is the role played by supersymmetry, grand unification, and string theory? How can we use the Standard Model to understand the structure and properties of protons and neutrons or other complex systems? How will matter behave in extreme conditions such as the early universe or interiors of neutron stars? Theorists at the University of Arizona are working to test the Standard Model, to explore the deeper structure, and to extend the range of things that can be calculated and understood from the fundamental theory.
