CMS stands for Compact Muon Solenoid: compact because it is small for its enormous weight, muon for one of the particles it detects, and solenoid for the coil inside its huge superconducting magnet. It is a high-energy physics experiment in Cessy, France, part of the Large Hadron Collider (LHC) at CERN.

CMS is designed to see a wide range of particles and phenomena produced in high-energy collisions in the LHC. Like a cylindrical onion, different layers of detector stop and measure the different particles, and use this key data to build up a picture of events at the heart of the collision.

Scientists then use this data to search for new phenomena that will help to answer questions such as: What is the Universe really made of and what forces act within it? And what gives everything substance? CMS will also measure the properties of previously discovered particles with unprecedented precision, and be on the lookout for completely new, unpredicted phenomena.


CMS Experiment

On this day, 14 years ago, the CMS and ATLAS Experiments announced the discovery of the Higgs Boson! Watch this video to learn more about the Higgs!

2 weeks ago | [YT] | 5

CMS Experiment

Did you miss our live virtual visit? No problem!

It’s available on our channel right now!

https://m.youtube.com/watch?v=7CL6qoN...

9 months ago | [YT] | 2

CMS Experiment

This is what building a control room looks like! CMS recently hosted an inauguration event to celebrate the start of a new era! Read the related article here: cms.cern/news/cms-inaugurates-its-new-control-room

1 year ago | [YT] | 2

CMS Experiment

Have you seen our latest video taking you 100m underground inside CMS cavern through the shaft or vertical passage used to lower CMS slices into the cavern? 🕳️
💬Comment how many slices of CMS have you seen in the video!
 
Footage credits: CERN

4 years ago | [YT] | 3

CMS Experiment

In the end of February, CMS detector weighing almost double than the Eiffel Tower has been set in closed configuration in preparation of Run 3!
Have you seen our latest video showing how disks weighing 1400 tonnes have been moved to make the detector compact?

4 years ago | [YT] | 2