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.

174 results

Hearing the sound of quark–gluon plasma

The CMS collaboration has measured the speed of sound in the quark–gluon plasma more precisely than ever before, offering new insights into this extremely hot state of matter

News
Physics
16 February, 2024
Physics
News
16 February, 2024

HiLumi News: protecting the components of CERN’s future accelerator

The collimation system of the Large Hadron Collider (LHC), which protects the accelerator’s components, needs an upgrade to be able to handle the performance of CERN’s future accelerator

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Accelerators
31 January, 2024
Accelerators
News
31 January, 2024

CMS presents its latest search for new exotic particles

This search for exotic long-lived particles looks at the possibility of “dark photon” production, which would occur when a Higgs boson decays into muons displaced in the detector

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Physics
10 November, 2023

ATLAS and CMS unite to weigh in on the top quark

The new result combines 15 previous measurements to give the most precise determination of the top-quark mass to date

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Physics
11 October, 2023

LIVE: from the CERN Control Centre with the four largest LHC experiments

Join scientists from the four largest LHC experiments and other experts, live at the CERN Control Centre on 2 November 2023, 3 p.m. CET, for a recap of the first heavy-ion run of the LHC Run 3

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Experiments
25 October, 2023
Experiments
News
25 October, 2023

Carbon dioxide for the environment

Following the completion of a successful in-house development phase, CERN is equipping the ATLAS and CMS detectors with new carbon dioxide (CO2) cooling systems that will contribute to the transition towards green and sustainable technology in this area

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Engineering
12 October, 2023
Engineering
News
12 October, 2023

From partons to hadrons

The CMS collaboration sheds light on hadron formation

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Physics
09 October, 2023
Physics
News
09 October, 2023

Looking for sterile neutrinos in the CMS muon system

CMS presents results of searches for long-lived neutral particles

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Physics
28 July, 2023

LHC experiments see first evidence of a rare Higgs boson decay

The ATLAS and CMS collaborations have joined forces to establish the first evidence of the rare decay of the Higgs boson into a Z boson and a photon

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Physics
26 May, 2023

ATLAS and CMS observe simultaneous production of four top quarks

The ATLAS and CMS collaborations have both observed the simultaneous production of four top quarks, a rare phenomenon that could hold the key to physics beyond the Standard Model

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Physics
24 March, 2023

CMS completes the release of its entire Run 1 proton-proton data

CMS has now released the complete set of proton-proton data taken from LHC Run 1, including the original findings used in the Higgs boson discovery

News
Knowledge sharing
14 December, 2022
Knowledge sharing
News
14 December, 2022