Benjamin Foust

Benjamin Foust is a Postdoctoral Researcher at Pacific Northwest National Laboratory specializing in experimental particle physics with a focus on neutrino research.

His educational background includes:

• Ph.D. in Physics from Yale University (2022)

Dr. Foust's research centers on resolving critical anomalies in reactor antineutrino physics, particularly the global flux deficit and 4-6 MeV spectral shape discrepancy. His work leverages precision measurements of U-235 antineutrino spectra through the PROSPECT experiment and STEREO collaboration to investigate sterile neutrino hypotheses and refine nuclear reactor models. This research bridges fundamental particle physics with practical nuclear database validation.

He actively contributes to the PROSPECT collaboration's high-statistics analyses (50,000+ antineutrino events) and pioneered joint unfolding techniques with STEREO to produce the most precise pure U-235 antineutrino spectrum measurement to date, advancing sterile neutrino exclusion/constraint efforts at the eV scale.