The field of high energy physics is guided by intertwined science drivers to explore the elementary constituents of matter and energy, the interactions between them, and the nature of space and time. The Office of High Energy Physics (HEP) executes its mission through a program that advances three frontiers of experimental scientific discovery and related efforts in theory and computing. HEP develops new accelerator, detector and computational tools to enable the science, and through Accelerator Stewardship works to make accelerator technology widely available to science and industry.

Energy Frontier
Theoretical Physics
Intensity Frontier
Advanced Technology
Cosmic Frontier
Accelerator Stewardship

Recent News

A Fermilab scientist works on the laser beams at the heart of the Holometer experiment.

Do We Live in a 2-D Hologram? Physicists Aim to Find OutExternal link

Physicists at Fermilab in Illinois have turned on a laser-based experiment that could reveal whether the three-dimensional world we perceive is merely a "Matrix"-style illusion generated by a cosmic two-dimensional hologram.. Read MoreExternal link

Dark Matter

Five Reasons We Think Dark Matter ExistsExternal link

Any recent article about the remaining mysteries of the Universe will include dark matter close to the very top of the list of unsolved problems. What is it? Where is it? And if it’s there, how do we measure it?  Read MoreExternal link

Dark Energy Survey

Dark Energy Survey kicks Off Second Season Cataloging the Wonders of Deep SpaceExternal link

The survey’s five-year mission is to unravel the fundamental mystery of dark energy and its impact on our universe. Read MoreExternal link

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Last modified: 9/22/2014 10:21:00 AM