Symmetries and Fundamental Interactions

Symmetries and Fundamental Interactions

Neutrino Physics

The COHERENT experiment

Our group is investigating a new type of neutrino interaction at the Oak Ridge Spallation Neutron Source, in which a neutrino scatters from the ‘whole’ nucleus.

Principal Investigator: Rex Tayloe, Daniel Salvat


LEGEND

This experiment searches for evidence of neutrinoless double beta decay.  If found, this would demonstrate that neutrinos are their own antiparticle, which would violate lepton number conservation.

Principal Investigator: Walter Pettus


Project8

This experiment seeks to directly measure the mass of the electron neutrino.  The energy distribution of beta decay electrons from tritium are measured with high precision using a radio-frequency detection technique.

Principal Investigator: Walter Pettus


Neutron Physics

Weak Interactions and BSM Physics with Neutrons

We search for exotic, spin-dependent neutron interactions beyond those expected in the Standard Model. Techniques include neutron spin rotation while passing through polarized nuclear targets, interactions with polarized electrons, and neutron interferometry.

Principal Investigator: Mike Snow


The BL3 Neutron Lifetime Experiment

We are preparing an apparatus to conduct a precision measurement of the decay rate of the neutron using a quasi-Penning trap in a cold neutron beam.

Principal Investigator: Mike Snow

Measuring the Neutron Lifetime using Ultracold Neutrons

We are performing the world’s most precise measurement of the neutron lifetime at the Los Alamos Neutron Science Center using a magneto-gravitational neutron trap.

Principal Investigator: Daniel Salvat


Physics Beyond the Standard Model

Weak Interactions with Electrons

We perform high precision parity violating electron scattering experiments to study nuclear structure and measure fundamental physics parameters to probe the Standard Model.  

Principal Investigator: Caryn Palatchi


Search for a Nuclear EDM with Storage Rings

We are looking for spin direction shifts as particles revolve around a beam storage ring

Principal Investigator: Edward Stephenson