Scientists on the CMS collaboration, along with scientists on the ATLAS collaboration, announced on July 4, 2012, the discovery of the Higgs boson.

Scientists from US institutions make up the largest national group in the CMS experiment. The US CMS collaboration includes 49 institutions, 800 physicists, nearly 200 graduate students and more than 300 engineers, technicians and computer scientists.

US groups have made significant contributions to nearly every aspect of the CMS detector. The US collaboration also plays a major role in analyzing the unprecedented amount of data generated by CMS, as well as in developing the software that allows physicists to operate the CMS detector, to reconstruct the data, to analyze it and to extract from it physics discoveries. As of today, the US provides about 40 percent of the total computing power that allows physicists throughout the country to retrieve data and complete analyses.

Browse below for videos, event displays and images related to the role of the CMS experiment in the discovery of the Higgs boson.


University of California, Santa Barbara, physicist Joe Incandela, leader of the CMS experiment, announces the discovery of the Higgs boson [starts at slide 2].

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Event Displays

An event display showing what the CMS detector sees when a Higgs boson decays into a pair of particles called Z bosons, which decay into a pair of electrons (green lines and green towers) and a pair of muons (red lines)

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