About the US/LHC Project

The Large Hadron Collider at CERN near Geneva, Switzerland is opening new vistas on the deepest secrets of the universe, stretching the imagination with newly discovered forms of matter, forces of nature, and dimensions of space. This site provides general information about the Large Hadron Collider and detailed information about American participation in the LHC accelerator and experiments. U.S. LHC participation is supported by the US Department of Energy's Office of Science and the National Science Foundation.

A proton-proton collision event in the CMS experiment producing two high-energy photons (red towers). This is what we would expect to see from the decay of a Higgs boson but it is also consistent with background Standard Model physics processes. (Courtesy: CERN)

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LHCf Images


The LHCf collaboration in 2006. Courtesy of CERN.	Arm #2 detector fully assembled. Courtesy of CERN.	The Arm #1 detector seen from the backside. The dimensions of this side are about 4" x 24". Courtesy of CERN.
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This is inside of the Arm #1 detector. The light green elements at the bottom measure energy of particles, while the cascade of nearly 1000 fibers carry light signals. The size of the detector is about 11" x 24". Courtesy of CERN.	Part of the LHCf experiment. 2008, Courtesy of CERN.	Arm #1 detector installed in the neutral particle absorber (TAN) in the LHC tunnel. Courtesy of CERN.
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About the US/LHC Project

LHCf Images

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