muon

An unstable subatomic particle of the same class as an electron (a lepton), but with a mass around 200 times greater. Muons make up much of the cosmic radiation reaching the Earth’s surface.

16 results

NA64 uses the high-energy SPS muon beam to search for dark matter

The NA64 collaboration has used a muon beam for the first time to search for dark matter and could set new limits for a potential dark Z' boson

News
Experiments
18 May, 2024

CERN70: The dark side of the muon

Francis Farley, a British physicist, joined CERN in 1957. This marked the start of a long and remarkable career in experiments to measure the anomalous magnetic moment of the muon

Feature
At CERN
14 March, 2024
At CERN
Feature
14 March, 2024

Looking for sterile neutrinos in the CMS muon system

CMS presents results of searches for long-lived neutral particles

News
Physics
28 July, 2023

Muon Collider

Accelerators
Accelerators

Detectors for a new era of ATLAS physics

The New Small Wheel system joins the ATLAS experiment after nearly a decade of design and construction

News
Experiments
09 November, 2021
Experiments
News
09 November, 2021

Leptoquarks, the Higgs boson and the muon’s magnetism

A new study shows that a class of new unknown particles that could account for the muon’s magnetism, known as leptoquarks, could also affect the Higgs boson’s transformation into muons

News
Physics
14 June, 2021

Aligning the ATLAS muon spectrometer

In new results, ATLAS physicists describe novel techniques used to accurately align the muon spectrometer

News
Experiments
23 March, 2021
Experiments
News
23 March, 2021

LS2 Report: 144 new muon detectors in CMS

CMS now has a new layer of detectors: 144 gas electron multiplier (GEM) chambers have been installed to detect the muons produced in the very forward region of CMS

News
Experiments
29 September, 2020
Experiments
News
29 September, 2020

LS2 Report: CMS set to glitter with installation of new GEMs

The CMS muon system is being upgraded to help track muons with ever-higher precision

News
Experiments
17 September, 2019
Experiments
News
17 September, 2019

CMS tightens its net around muons

During LS2, CMS will install 144 additional muon detector modules specially designed to detect particles produced in the very forward region

News
Experiments
07 April, 2019
Experiments
News
07 April, 2019

A “muoscope” with CMS technology

Researchers from the CMS experiment at the Large Hadron Collider are developing a new application based on one of the experiment’s particle detectors

News
Knowledge sharing
22 March, 2019
Knowledge sharing
News
22 March, 2019