Accomplishments and Future Goals of Experimental Particle Physics at Caltech

Lead-PI: Professor Maria Spiropulu

California Institute of Technology

Mail Code 452-48

1200 East California Boulevard

Pasadena, CA 91125

ABSTRACT

The California Institute of Technology plans to conduct a broad experimental program in High Energy Physics (HEP) across the U.S. Department of Energy's HEP Energy, Intensity, Cosmic, and Advanced Novel Detector instrumentation R&D Frontiers. We propose a fundamental physics program at the Large Hadron Collider (LHC) and the High-Luminosity LHC at CERN that includes the development and fabrication of novel ultra-fast timing detector subsystems, intersections with AI/ML and novel searches for new physics. We propose research for Lepton Flavor Violating physics to be undertaken at Fermilab and exploration of the dark sector. We propose neutrino physics research including in the major U.S.-hosted Long-Baseline Neutrino Facility and associated Deep Underground Neutrino Experiment (LBNF/DUNE) project at Fermilab and in South Dakota. Finally, we propose a direct detection dark matter research program and an advanced detector R&D program on next-generation sub-Kelvin particle detectors for all elementary particle physics and beyond.