Peeking inside the proton: the story of Z+ϒ
CMS discovers associated production of a Z boson and an ϒ meson.
Shiny new luminosity and beam conditions instrumentation for CMS
New BRIL subsystems illuminate CMS’s path through Run 3
First Tracker Support Structures, TBPS Rings, in production for Hi-Lumi CMS!
The TBPS Rings are in production, offering an innovative design to incline sensors toward the LHC beam and maximise coverage. They are the first support structures in production for the new Tracker!
Hi-Lumi iRPC Muon chambers installed in CMS in record time!
The first of the improved Resistive Plate Chambers for Hi-Lumi CMS were installed in record time during the LHC winter break.
Installation of Next-Generation CO2 Cooling System for Hi-Lumi CMS
CERN and CMS engineers and technicians have installed the first two of nine required next-generation carbon dioxide (CO2) cooling plants in the underground Service Cavern of the CMS experiment in Cessy, France, as well as two of the accumulators.
What does 2025 hold for CMS?
2024 was an impressive year: the most data ever collected by CMS, many important results including two landmark results (
Art & Science Co-Lab at Art Genève!
Art & Science Co-Lab at Art Genève 2025: A Meeting Point for Creativity and Innovation
The "Large Photon Collider": CMS observes scattering of light by light at the LHC
CMS scientists discover some of the rarest collisions that the LHC can produce – such as the scattering of light by light – and learn more about the quantum nature of electromagnetism, search for new particles, and much more.
CMS Wrapped: A Year in Review
Welcome to our look back at 2024 - and what a year it has been!