Fermi National Accelerator Laboratory and
Winner of the 2011 Sakuari Prize of the American Physical Society
His work ranges over many topics in particle physics, from electroweak symmetry breaking and supercollider physics to heavy quarks and the strong interaction among them to ultrahigh-energy neutrino interactions. The essential interplay between theory and experiment is a guiding theme. Because we cannot hope to advance without new instruments, he has devoted much energy to helping to define the future of particle physics—and the new accelerators that will take us there.