CMS successfully tested the HiLumi CMS lifting system during the 2025/2026 year-end stop, and we captured the whole process in this timelapse! ποΈ
ποΈRead the news here: cms.cern/news/load-te...
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! βπ»
βοΈ Read his blog to get a taste of what a #NextGenTriggers (NGT) hackathon is like: cylindricalonion.web.cern.ch/blogs/tomorr...
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 β¨ #InternationalWomensDay
β‘οΈ youtu.be/11Lm0yHxjH0
Caught in the act!ππ
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.
π HGCAL Image of the Month
πΈ Alexander Kaminskiy
π₯Splash! π₯
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, due to take place in the coming days.
The CMS Inner Tracker team has tested the new silicon pixel detector modules at the CERNβs #HiRadMat (High Radiation to Materials) facility, in order to evaluate any potential damage to the detector in case of beam loss at #HiLumiLHC!
π Tracker Image of the Month
πΈ A. Lapertosa
β¨ Spokesperson 2026-28: Anadi Canepa, Senior Scientist at Fermilab
β¨ Deputy 2024-26: Hafeez Hoorani, Professor Emeritus at Imperial College London finishes his term to the 31st of August 2026
β¨ Deputy 2026-28: Florencia Canelli, Professor of Physics at University of Zurich
π₯³ Welcome to the new CMS Spokesperson and deputies team!
πLearn more about the team here: cms.cern/news/cms-wel...
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.
π MTD Image of the Month
πΈ Guillaume Soudais
The CMS Collaboration reports the first measurement of coherent Ο meson photoproduction, establishing a powerful new tool to study intermediate gluon densities in highly energetic nuclei collisions π₯
πRead more: cms.cern/news/examini...
What does it take to supply power to the CMS Tracker? ππ
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?...
Machine learning to reveal more about #LHC particle collisions
The @cmsexperiment.bsky.social demonstrates that machine learning can outperform traditional methods in the full reconstruction of particle collisions at the Large Hadron Collider.
Find out more: home.cern/news/news/ph...
Want the full story? Join the seminar in half an hour: indico.cern.ch/event/1632943/
Teaching CMS to trace particles! π§βπ«
For the first time, CMS is using machine learning to reconstruct collisions at the LHC β making it faster and even more precise than the traditional approach particle flow with #MachineLearning.
ποΈRead more: cms.cern/news/teachin...
Not your regular ladder! πͺ
This super light structure is just one of the 372 ladders that are needed for the Hi-Lumi CMS Outer Tracker!
πTracker Image of the Month
πΈ Nicolas Busser | IPHC, Strasbourg
Happy International Day of Women and Girls in STEM! ππ₯Ό
Seulgi is a scientist working on the CMS Experiment at @cern.bsky.social, and here she tells us about her journey in Korean, her mother tongue.
youtu.be/UG8NsULsvDg
#WomenInScience #WomenInScience2026 #IDWGS #IDWGS2026
Happy International Day of Women and Girls in STEM! π¬ π
Garvita is a scientist working on the CMS Experiment at @CERN, and here she tells us about her journey in Hindi, her mother tongue.
π½οΈ youtu.be/LsoWoZC5QyM
#WomenInScience #WomenInScience2026 #IDWGS
π₯π΄ Live starts SOON!
Visit the CMS experimental site from the comfort of your house, here: www.youtube.com/live/ZhZEhTD...
πJoin our scientists as they take you into the experimental cavern at the CMS Experiment at @CERN!
π§²The CMS solenoid magnet is on RIGHT NOW, and we're streaming from inside its magnetic field & answering all your questions!
πSign up here: indi.to/LqtTM
Busy bees at CERN! π
Our physicists are carefully assembling minimal detector blocks based on hexagonal silicon modules.
These will be stacked to build a small test version of the new HGCAL calorimeter for the HighβLuminosity LHC era.
π HGCAL Image of the Month
πΈ Andre David
Groundbreaking calorimeter for the #HiLumiLHC
The @cmsexperiment.bsky.social has recently completed the first prototype slice of its innovative High-Granularity Calorimeter (HGCAL), which will be the largest silicon-based detector ever built.
Read more: home.cern/news/news/ex...
The CMS EXOTICA Workshop is currently underway at CERN! π
Three CMS physicists shared what they are most excited about regarding the workshop and the prospects of Exotic physics research during Run 3 and the High-Luminosity LHC.
This is how the massive steel structure for the new CMS calorimeter, HGCAL, was tested! π·
Last summer the structure that will house the delicate HGCAL cassettes was assembled in Pakistan and rotated to test its integrity.
π½οΈ Watch the timelapse: youtu.be/Xs_RxGwwlC0
The final CMS Week of 2025 took place in Seoul and once again we enjoyed an amazing poster session! π
Now the question is: can our scientists explain their research in under a minute? β³
Letβs find out!π½οΈ youtu.be/p7aQcQf1kpg
TrΓ¨s heureux dβavoir emmenΓ©s hier les compΓ¨res de e-penser et @astronogeek.bsky.social au @cern.bsky.social pour une journΓ©e de visite ! ApothΓ©ose avec la descente dans @cmsexperiment.bsky.social
This is your sign to apply for the @cern.bsky.social Summer Student Programme 2026! β¨
Whether you're interested in physics, engineering, or computing, this is your chance to work at the CMS Experiment: careers.cern/jobs/cern-su...
βοΈDeadline: 26 January 2026
youtu.be/pSKtNaNbZ9w?...
Now that 2026 has started we take a little look back at the shift crew that made the 2025 run possible and such a success! Each duck has been signed by a somebody doing a shift in the CMS Control Room over 2025 (which by the way, we inaugurated early last year!) - thank you to every single one!
πFrom an unexpected conversation at @cern.bsky.social to a classroom in Togo πΉπ¬! Read Tomβs blog about the recent LHC Open Data workshop at the African Conference on Fundamental Physics and Applications: cylindricalonion.web.cern.ch/blogs/lhc-op...
What a wonderful year 2025 has been! CMS wishes everybody a very happy New Year's Eve - can you spot what all the little designs in the illustration stand for? Hint: they're all important CMS moments from 2025!
Happy Holidays from the CMS Experiment at @cern.bsky.social ππ β€οΈ
