Professor Willenbrock is involved in the theory and phenomenology of the strong and weak interactions. He has concentrated his efforts on the physics of electroweak symmetry breaking, which is responsible for the generation of particle masses, and on the top quark, which is the least well-studied of the elementary particles. He performs calculations relevant to experimental studies of the Higgs boson (the leading candidate for the particle responsible for electroweak symmetry breaking) and the top quark, as well as calculations in quantum chromodynamics (the theory of the strong interaction). He also pursues theoretical studies of fundamental issues that underlie the theories of the strong and weak interactions.
This material is based upon work supported by the Department of Energy under Grant Numbers 64377, 56840, 80780, 561096, DEFG02-03ER41281, DEFG02-91ER40677, and DE-SC0009932. This material is also based on work supported by the National Science Foundation under Grant Numbers PHY03-49179 and PHY04-26272. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Department of Energy or National Science Foundation.