CMS

The Compact Muon Solenoid (CMS) is a general-purpose detector at the Large Hadron Collider (LHC). It is designed to investigate a wide range of physics, including the search for the Higgs boson, extra dimensions, and particles that could make up dark matter. Although it has the same scientific goals as the ATLAS experiment, it uses different technical solutions and a different magnet-system design.

186 results

CMS experiment at CERN weighs in on the W boson mass

The eagerly awaited result is the most precise measurement of the W mass made at the LHC so far, and is in line with the prediction from the Standard Model of particle physics

Press release
Physics
17 September, 2024
Physics
Press release
17 September, 2024

LHC experiments at CERN observe quantum entanglement at the highest energy yet

The results open up a new perspective on the complex world of quantum physics

Press release
Physics
18 September, 2024
Physics
Press release
18 September, 2024

Accelerator Report: No summer holidays for the accelerator complex

CERN’s accelerators show very good availability rates: beams are in place

News
Accelerators
11 July, 2024

Going the extra mile to squeeze supersymmetry out of CMS data

Re-analysing LHC Run 2 data with cutting-edge analysis techniques allowed CMS physicists to address an old discrepancy

News
Physics
27 June, 2024

Accelerator Report: Technical stops always hold a few surprises

Restarting the entire accelerator complex after a technical stop is rarely seamless and often comes with unexpected technical challenges

News
Accelerators
27 June, 2024

Shaking the box for new physics

The CMS collaboration has searched for new physics in a rare decay of a known particle, using an approach that can be likened to shaking a box containing a birthday present to find a clue about what’s inside

News
Physics
12 June, 2024
Physics
News
12 June, 2024

Probing matter–antimatter asymmetry with AI

Using a cutting-edge AI algorithm, the CMS collaboration has obtained the first evidence of CP violation in the decay of the strange beauty meson into a pair of muons and a pair of electrically charged kaons

News
Physics
30 April, 2024

CMS releases Higgs boson discovery data to the public

The collaboration has also made publicly available the software that it developed to search for the unique particle

News
Experiments
16 April, 2024

Blazing trails: CMS cavern evacuation paves the way for future safety design

How an evacuation of the CMS experimental cavern has provided invaluable human behaviour data to improve emergency preparedness for complex underground facilities

News
At CERN
17 April, 2024

The next-generation triggers for CERN detectors

The recently launched Next-Generation Triggers project is set to remarkably increase the efficiency, sensitivity and modelling of CERN experiments

News
Computing
11 April, 2024

The CMS experiment at CERN measures a key parameter of the Standard Model

With this measurement the LHC is again demonstrating its ability to provide very high-precision measurements and bringing new insights into an old mystery

Press release
Physics
03 April, 2024
Physics
Press release
03 April, 2024

First observation of photons-to-taus in proton–proton collisions by CMS

Using the outstanding tracking capabilities of the CMS detector, the collaboration observed two photons producing two tau-leptons in proton–proton collisions

News
Physics
25 March, 2024