My current research concerns experimental investigations into symmetries of nature, in particular, elucidating the source of the slight asymmetry between matter and antimatter, or CP violation. This tiny asymmetry is thought to be responsible for the nearly absolute asymmetry between matter and antimatter in the universe, indeed why there is any matter at all in the universe. Although matter and antimatter asymmetries have been seen in the lab, the asymmetries seen to date are too small to explain absence of antimatter in the universe. Hence, one of the goals of my group's research is to search for new sources. In an innovative Fermilab experiment, HyperCP, which accumulated the largest data sample ever taken, novel sources of CP violation were searched for and not found in hyperon decays. HyperCP has found intriguing evidence for a new particle in the rarest decay of a baryon yet observed. I serve as cospokesperson of HyperCP.

I am involved in a in two new Fermilab experiments, the NOvA experiment, which, among other things, will search for matter-antimatter asymmetries in neutrinos. The fifteen-thousand ton NOvA detector, one the largest ever built, will be sited in woods of northern Minnesota. NOvA will be the flagship experiment of the US domestic particle physics program in the coming decade, and one of the flagship neutrino experiments in the world. My research group is responsible for the NOvA Detector Controls and Monitoring System and the Power Distribution System.

I have also started work on a new experiment, Mu2e, which will search for lepton flavor violation in the decay of the muon, with a sensitivity of four orders of magnitude beyond present limits. Although the neutral leptons, neutrinos, have been found to change into one another (neutrino oscillations) there is no evidence that the charged leptons (electrons, muons, and taus). Mu2e will probe mass scales unattainable at any present or planned accelerator. I serve as head of the Institutional Board for Mu2e.

I'm happy to talk about my research, or anything else, with you.