Research Interests

The neutrino is a ubiquitous particle in our universe, originating from the Sun, the Earth’s core and atmosphere, supernovae, the Big Bang, and man-made sources such as nuclear reactors and particle accelerators.  Despite its omnipresence, it remains the least understood known fundamental particle due to its weak interactions with other particles (and thus particle detectors).  One surprising discovery in the last few decades is the experimental confirmation of neutrino oscillation, opening up many other questions in the field.  What is the origin and ordering of neutrino mass, which enables these oscillations?  Do neutrinos of the Standard Model mix with other undiscovered states (sterile neutrinos) as well?  And are neutrinos at the heart of the matter-antimatter asymmetry of the universe?

One promising detector technology that can be used to answer many of these questions is the liquid argon time projection chamber (LArTPC), an imaging detector that can be used to “photograph” neutrino-nucleus interaction events.  This detector technology offers excellent spatial resolution that can be used to study the neutrino in unprecedented detail.  My research has been focused on understanding how to utilize the LArTPC technology for precision neutrino physics, including calibrating the detector for surface operation, developing novel techniques for the reconstruction of neutrino interaction events, and research and development of cold (inside LAr) electronics used to minimize noise levels in the detector.  I am participating in several LArTPC accelerator neutrino experiments, namely MicroBooNE (Micro Booster Neutrino Experiment), the SBN (Short-Baseline Neutrino) program, and DUNE (Deep Underground Neutrino Experiment), all of which utilize neutrino beams produced at Fermilab near Chicago, Illinois.  MicroBooNE has been collecting data with neutrino beam since 2015, while SBN and DUNE will begin operations within the next several years and decade, respectively.

Previously I worked on the Compact Muon Solenoid (CMS) experiment of the Large Hadron Collider (LHC) at CERN in Geneva, Switzerland, participating in the successful search for the Higgs boson (discovered in 2012).

MicroBooNE TPC during installation into cryostat (left) and 3D imaging of neutrino interaction event in MicroBooNE LArTPC (right).