| AI | artificial intelligence |
| AIP | American Institute of Physics |
| CEPC | Circular Electron Positron Collider |
| CERN | CERN was an acronym for the Conseil Européen pour la Recherche Nucléaire, which led to the creation of the global laboratory that is today the European Laboratory for Particle Physics.1 |
| CMB | cosmic microwave background |
| CP | charge parity |
| CUORE | Cryogenic Underground Observatory for Rare Events |
| DES | Dark Energy Survey |
| DESI | Dark Energy Spectroscopic Instrument |
| DOE | Department of Energy |
| DUNE | Deep Underground Neutrino Experiment |
| EIC | Electron-Ion Collider |
| FCC | Future Circular Collider |
| FEL | free-electron laser |
| Fermilab | Fermi National Accelerator Laboratory |
| HEP | high energy physics |
| HEPAP | High Energy Physics Advisory Panel |
| HL-LHC | High Luminosity LHC |
| Hyper-K | Hyper-Kamiokande |
| ILC | International Linear Collider |
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1 CERN, n.d., “Where Did It All Begin?” https://home.cern/about/who-we-are/our-history, accessed May 5, 2025.
| IUPAP | International Union of Pure and Applied Physics |
| KEK | High Energy Accelerator Research Organization |
| ΛCDM | Lambda Cold Dark Matter |
| LCLS | Linac Coherent Light Source |
| LHC | Large Hadron Collider |
| LLM | large language model |
| LSST | Legacy Survey of Space and Time |
| ML | machine learning |
| Mu2e | muon to electron |
| NSF | National Science Foundation |
| ORNL | Oak Ridge National Laboratory |
| P5 | Particle Physics Project Prioritization Panel |
| PIP-II | Proton Improvement Plan II |
| QCD | quantum chromodynamics |
| QIS | Quantum Information Science |
| R&D | research and development |
| RF | radio frequency |
| SDSS | Sloan Digital Sky Survey |
| SESAME | Synchrotron-Light for Experimental Science and Applications in the Middle East |
| SLAC | Stanford Linear Accelerator Center |
| SNS | Spallation Neutron Source |
| SQMS | Superconducting Quantum Materials and Systems |
| SSC | Superconducting Super Collider |
| STEM | science, technology, engineering, and mathematics |
| TIP | Technology, Innovation and Partnerships |
| WIMP | Weakly Interacting Massive Particle |