European Organization for Nuclear Research

Introducing CMS

CMS releases first batch of high-level LHC open data

“The scientific knowledge we produce is for everyone to share.”

High-school students analysing CMS open data as part of the Physics Masterclasses. Photo credit: Marzena Lapka

Englert and Higgs get the Nobel

Special mention to ATLAS and CMS experiments for confirming existence of the BEH mechanism by discovering a Higgs boson

François Englert (left) and Peter Higgs at CERN on 4 July 2012, on the occasion of the announcement of the discovery of a Higgs boson by the ATLAS and CMS experiments (Image: Maximilien Brice/CERN)

Observation of a New Particle with a Mass of 125 GeV

CMS Experiment, CERN
4 July 2012

Event recorded with the CMS detector in 2012 at a proton-proton centre-of-mass energy of 8 TeV. The event shows characteristics expected from the decay of the SM Higgs boson to a pair of photons (dashed yellow lines and green towers). The event could also be due to known standard model background processes.

Physics Results

Physicists analyze LHC collision data recorded by the CMS detector and make all the research results freely available

CMS physicists study the first LHC collisions

CMS Detector

The CMS detector is a 5 storey-high digital camera recording hundreds of images per second of debris from LHC particle collisions

CMS detector at the LHC

About CMS

CMS is an experiment at CERN's Large Hadron Collider (LHC) that is searching for new physics

Large Hadron Collider at CERN

General News RSS feed

CHIPP Prize 2014 to Marco Peruzzi

2014-07-30, by Paris Sphicas

Marco Peruzzi holding his diploma. © Swiss Physical Society

2013 CMS PhD Thesis Awards presented during June CMS week

2014-07-03, by Paris Sphicas

Claudia Wulz, Giovanni Petrucciani, Lorenzo Bianchini, Tiziano Camporesi. Joern Lange could not attend the Awards presentation in person.

CMS recognizes achievements of young collaborators

2014-12-01, Jim Virdee

CMS releases first batch of high-level LHC open data

2014-11-20, Achintya Rao

The LHC as a photon collider

2014-09-02, Achintya Rao

Queen Elizabeth II bestows Knighthood on CMS Physicist

2014-06-30, Achintya Rao

How "green" are we? The environmental footprint of an LHC detector

2014-03-27, Andrea Gaddi

A cool Tracker! Cold operation established for subdetector

2014-03-17, Erik Butz

Hands-on workshops that expand horizons

2014-02-07, Rebeca Gonzalez Suarez

CMS to improve underground fire-extinguishing system

2014-01-24, Achintya Rao

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Physics News RSS feed

Recent results in the search for supersymmetry

2014-07-24, by Paris Sphicas

Figure 1 (left) Exclusion limits for production of Higgsino production as a function of Higgsino mass and branching fraction. (right) Most sensitive search channel as a function of Higgsino mass and branching fraction

CMS closes major chapter of Higgs measurements

2014-07-03, by Tiziano Camporesi

Figure 1: Combined diphoton mass spectrum illustrating the significance of the observed excess, where events are weighted by the expected signal-to-background ratio. The corresponding background-subtracted distribution is shown in the lower panel.

Quark Matter 2014: the full crop from CMS

2014-06-12, Matthew Nguyen

Quark Matter 2014: news from CMS

2014-05-27, Christof Roland

CMS presents a new precise measurement of the top-quark mass

2014-03-31, Anonymous

A bound on the natural width of the Higgs boson

2014-03-30, Anonymous

CMS presents evidence for Higgs decays to fermions

2013-12-03, Achintya Rao

Recent results on SUSY searches from CMS

2013-08-02, Verena Ingrid Martinez Outschoorn

A very rare decay has been seen by CMS

2013-07-19, Achintya Rao

Supersymmetric glue: the search for gluinos

2013-07-03, Don Lincoln

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