Low Energy Precision Physics
We perform precision tests of the Standard Model, search for new physics, and develop new measurement methods at the interface of particle physics, atomic physics, and nuclear physics. We also work closely with theorists, especially on the implications of EDM constraints in particle phenomenology. Current themes include:
- Permanent electric dipole moments, or "EDMs" (see also: Testing the Standard Model and New Physics searches)
- Ultracold neutron science, sources, and detectors (see also: Quantum sensing with neutrons)
- Optical excitation of noble gases (see also: Nonlinear quantum optics)
- Precision magnetometry and low magnetic fields
- Global analysis in low energy particle physics
While both "high energy" and "high precision" searches can be sensitive to new physics signals from the same sources, these signals enter experiments in very different ways. High-energy searches are typically sensitive to specific channels, for example seeking to directly produce a new particle. Low-energy experiments more typically measure very subtle effects arising indirectly from new degrees of freedom, and collect contributions from many possible sources like a "lightning rod" for new physics processes. While these approaches are often aligned, respectively, with the labels of "energy frontier" (red vertical arrow) and "intensity frontier" (green horizontal arrow) research, it is important to understand that collider searches can also measure virtual processes with high precision ...and low-energy experiments can also constrain very high mass scales.