I am a professor of physics at Caltech carrying out experimental research on neutrinos, investigating the details of their masses and flavors, their potential connections to the origin of matter in the universe, possible new physics beyond the Standard Model, the dynamics of supernovae, and more.

This work requires large-scale neutrino experiments, and my research group is actively involved in the NOvA and DUNE programs. With NOvA, we study neutrino flavor change using an intense neutrino beam that originates at Fermilab and travels 810 kilometers to a massive 14-kiloton detector. DUNE is a next-generation experiment currently under construction that will greatly expand our science reach, not only through beam neutrino measurements but also through observations of astrophysical sources and searches for physics beyond the Standard Model enabled by the DUNE design. Along the way, we develop and apply new detector technologies and novel data analysis techniques.

Select news:

• An accessible summary of our recent joint analysis of NOvA and T2K data: "Neutrino Experiments in U.S. and Japan Join Forces" – October 2025
• The paper describing the combined NOvA and T2K analysis is published in Nature – October 2025
• An article showcasing the performance of the four-module 3D-pixelated DUNE ND-LAr prototype (the "2x2" detector) is submitted – September 2025
• First neutrino events with the 2x2 detector – August 2024
• Cavern excavation for the DUNE far detector modules is complete – February 2024
• We've published a review article focusing on experimental considerations in long-baseline neutrino experiments, aimed at researchers new to the field – September 2023