In Run 3, CMS expanded its trigger program to enhance capturing long-lived particles that decay far away from the point of collision – broadening the search for physics beyond the Standard Model.
First measurements of vector boson scattering at 13.6 TeV
The CMS Collaboration reports the first measurements of the production of same-sign WW and WZ boson pairs in association with two jets at 13.6 TeV, using data collected during 2022–2024.
CMS at Moriond 2026
The CMS Collaboration announces 38 new results for Moriond 2026.
Here are the highlights of what we have presented so far.
Handling Supermodules for Hi-Lumi CMS: How the ECAL team tested their Enfourneurs
The Electromagnetic Calorimeter (ECAL) group has tested the second enfourneur (pictured above), a highly specialized instrument that allows the insertion and extraction of key components of the CMS
Load Testing over 365 Tonnes on 'Spindles' in Preparation for Hi-Lumi CMS
CMS successfully carried out key tests for the lifting system needed in the construction of Hi Lumi CMS during the end of year stop 2025/2026.
Examining the fringes of gluon densities in highly energetic nuclei
The CMS Collaboration reports the first measurement of coherent ϕ meson photoproduction, establishing a powerful new tool to explore the dense nuclear matter in the transition regime from perturbative to nonperturbative QCD.
CMS Welcomes New Management for 2026-2028
Anadi Canepa has been elected the new CMS Spokesperson 2026 - 2028. Florencia Canelli will join Hafeez Hoorani as Deputy Spokesperson.
Teaching CMS to trace particles
An interactive version of the above event display can be found at this page.