The OS is the largest supporter of basic research in the physical sciences in the U.S. The mission of the Office of High Energy Physics (HEP) is to: discover the elementary constituents of matter and energy; probe the interactions between them, explore the basic nature of space and time. The Office of High Energy Physics (HEP) supports ~85% of particle physics research in the U.S., >160 institutions, nearly 1200 scientists and 525 graduate students, more than 3,300 users at DOE scientific facilities.

Our work is carried out along 3 divisions: Accelerator and Technology (comprised of accelerator programs, instruments and detectors R&D, machine learning and computational HEP, quantum information science), Research (including energy, intensity and cosmic frontiers, theory), and Facilities and Projects (that manages facilities and construction of new projects).

Some of our current main initiatives are:

• Energy Frontier’s two main focuses are the U.S. participation at the Large Hadron Collider (LHC) at CERN and studies of future colliders (linear or circular).

• The Intensity Frontier’s main experiments are DUNE, ICARUS, Mu2E, NOvA, Muon g-2, Belle, and COHERENT.

• Cosmic Frontier focusses on the study of dark energy and dark matter through experiments like DES and DESI, the LSST camera of the Vera C. Rubin Observatory, and experiments for direct detection of dark matter (ADMX, LZ, CDMS, and Dark Matter New Initiatives).

• The theory portfolio includes Standard Model Phenomenology, Beyond the Standard Model, Cosmology and Astroparticles, Lattice Field Theory, Formal Theory and Mathematical Physics.

• Quantum information science centers on development of quantum information, theory, and technology.

• Computational HEP supports advanced computing research and development in hardware-software co-design, collaborative software infrastructure, and high-performance software and algorithms. HEP also holds development of cutting edge applications of artificial intelligence and machine learning (AI/ML).

HEP offers support for graduate students, postdoctoral researchers and early career scientists at U.S. institutions through programs like the Graduate Fellows in High Energy Theory, Traineeships in Computational High Energy Physics, Traineeships in Accelerator Technology, and Early Career Research Program.

The DoE Office of Science is the largest supporter of basic research in the physical sciences in the U.S. The mission of the Office of High Energy Physics (HEP) is to: discover the elementary constituents of matter and energy; probe the interactions between them, explore the basic nature of space and time.

This presentation describes the office of High Energy Physics, its main programs, and many opportunities offered for scientists and students.