Sau Lan Wu is a particle physicist who helped confirm the existence of three fundamental particles, the building blocks of protons. Born in Hong Kong, Sau Lan Wu came to the U.S. in 1960 to attend Vassar College on a full scholarship and received a B.A. in Physics. She then earned an M.A. and PhD in Physics from Harvard University. She conducted research under Samuel C.C. Ting at MIT and was part of the team that discovered the J/psi particle. At the University of Wisconsin, she played a leading role in discovering the gluon in 1979 and the Higgs Boson in 2012. She and her colleagues were awarded the 1995 High Energy and Particle Physics Prize of the European Physical Society, and she was elected Fellow of the American Academy of Arts and Sciences. She is currently a visiting scientist at CERN and the Enrico Fermi Distinguished Professor of Physics at the University of Wisconsin.