CMS Experiment CERN

🚀Prepare for trouble! Make it double! Is there a new type of symmetry out there that prevents new dark particles from socializing with the known standard model particles? Read more 👉 cms.cern/news/double-do…

Heavy force-carriers collide at record energy ⚡ CMS reports the first measurements of vector boson scattering at 13.6 TeV. Read more 👉 cms.cern/news/first-mea…

How did Korea become part of the CMS Collaboration? 🇰🇷 Sung Park, the driving force behind Korea CMS, discusses the project's early days, the hurdles the team overcame, and the incredible milestones they’ve reached! 🎯 Watch the video: youtu.be/yL9VphwZk64?si…

Join us for all the latest news about the Moriond physics conference! 👉cms.cern/news/cms-morio… You can find a summary of CMS' contributions here, and it will be updated throughout the next two weeks as more results are announced so make sure to stay tuned!

CMS successfully tested the HiLumi CMS lifting system during the 2025/2026 year-end stop, and we captured the whole process in this timelapse! 🏗️ 🗞️Read the news here: cms.cern/news/load-test…

A hackathon at IdeaSquare, lots of coffee, and writing code that will help run the CMS Experiment in 2030: this is how Emanuele spent his first days at @CERN! ☕💻 ✍️ Read his blog to get a taste of what a #NextGenTriggers (NGT) hackathon is like: cylindricalonion.web.cern.ch/blogs/tomorrow…

CMS is celebrating the vital contributions of women scientists across the collaboration! Watch Zeina describe her journey into STEM in her mother tongue and share a message for all young women following in her footsteps ✨ #InternationalWomensDay ➡️youtu.be/11Lm0yHxjH0

Caught in the act!👀 Ece is potting cables for the HGCAL cold box at @CERN. This process electrically insulates and mechanically stabilises delicate cable connections, ensuring long-term reliability inside the detector system. 🏆 HGCAL Image of the Month 📸 Alexander Kaminskiy

💥Splash! 💥 CMS sees splashes of protons in the detector: beams of protons are whizzed around the #LHC and crash into a barrier just before the CMS detector! We use these splashes to calibrate the detector before starting full particle collisions.

The CMS Inner Tracker team has tested the new silicon pixel detector modules at the CERN’s #HiRadMat (High Radiation to Materials) facility, in order to evaluate any potential damage to the detector in case of beam loss at #HiLumiLHC! 🏆 Tracker Image of the Month 📸A. Lapertosa

✨ Spokesperson 2026-28: Anadi Canepa, Senior Scientist at Fermilab ✨ Deputy 2024-26: Hafeez Hoorani, Professor Emeritus at Imperial College London finishes his term to the 31st of August 2026 ✨ Deputy 2026-28: Florencia Canelli, Professor of Physics at University of Zurich

🥳 Welcome to the new CMS Spokesperson and deputies team! 👉Learn more about the team here: cms.cern/news/cms-welco…

Anadi Canepa, a senior scientist at Fermilab, has begun work as the new spokesperson of the @CMSExperiment. Canepa brings a wealth of scientific leadership experience to the role as the collaboration prepares for the High-Luminosity Large Hadron Collider. news.fnal.gov/2026/02/anadi-…

Surviving a particle beam! This is how we test parts of the future CMS Hi-Lumi detector. Here the BTL team are testing whether their readout units behave as expected when put in a test beam of particles. 🏆 MTD Image of the Month 📸 Guillaume Soudais

The CMS Collaboration reports the first measurement of coherent φ meson photoproduction, establishing a powerful new tool to study intermediate gluon densities in highly energetic nuclei collisions 💥 📍Read more: cms.cern/news/examining…

What does it take to supply power to the CMS Tracker? 🔋🔌 Watch the video to meet the international team that produces the cables for the Tracker, and understand the complexity behind the cabling in just 5 minutes: youtu.be/vSyb4zPIHTw?si…

Want the full story? Join the seminar in half an hour: indico.cern.ch/event/1632943/

Teaching CMS to trace particles! 🧑‍🏫 For the first time, CMS is using machine learning to reconstruct collisions at the LHC – making it faster and even more precise than the traditional approach particle flow with #MachineLearning. 🗞️Read more: cms.cern/news/teaching-…

Not your regular ladder! 🪜 This super light structure is just one of the 372 ladders that are needed for the Hi-Lumi CMS Outer Tracker! 🏆Tracker Image of the Month 📸 Nicolas Busser | IPHC, Strasbourg

Happy International Day of Women and Girls in STEM! 🌟🥼 Seulgi is a scientist working on the CMS Experiment at CERN, and here she tells us about her journey in Korean, her mother tongue. youtu.be/UG8NsULsvDg #WomenInScience #WomenInScience2026 #IDWGS #IDWGS2026