Fundamental neutron physics at the Spallation Neutron Source

Free neutrons offer a unique way of probing fundamental properties in subatomic physics. Precision measurements with neutrons have a long history of constraining parameters in the Standard Model of particle physics and theories beyond. With the Spallation Neutron Source (SNS) and the High Flux Isotope Reactor, Oak Ridge National Lab provides two of the most intense sources of free neutrons and offers unique opportunities for new and more precise studies.

This presentation will give an overview of the current research program at the SNS Fundamental Neutron Physics Beamline—namely a search for an electric dipole moment of the neutron with the nEDM@SNS apparatus and a measurement of neutron decay correlations with the Nab spectrometer—and review other fundamental physics opportunities leveraging the neutron facilities and their planned upgrades.