@cmsexperiment.bsky.social
The CMS Experiment at CERN! Follow us as we study the fundamentals of the universe...
Find all our links here --> https://linktr.ee/cmsexperiment
@cmsexperiment.bsky.socialHeavy-ion collisions at the LHC create a plasma that existed in the early universe. For the first time, CMS is using “event-shape engineering” to investigate how charm quarks fly in the expanding geometry of this extraordinary medium.
Read the full briefing here: cms.cern/news/carried...
@cmsexperiment.bsky.socialThe CMS Collaboration has presented 6 new results at the 19th International Workshop on Top Quark Physics (TOP 2026), including studies of top-quark behavior, rare particle processes, and innovative applications of machine learning in particle physics.
Explore the results: cms.cern/news/cms-top...
@cmsexperiment.bsky.socialA breakthrough is not just about the discoveries we make today, it is also about empowering the people who will make tomorrow's discoveries possible.
Congratulations to the inaugural cohort of the CMS Breakthrough Prize PhD Awards 2026!
Read the full story here: cms.cern/news/2026-cm...
@cmsexperiment.bsky.socialCMS Muon Cathode Strip Chambers – out today, back for the future! ✨
Read the full article about the incredible work being done with the CSCs on our website: cms.cern/news/cms-muo...
@cmsexperiment.bsky.socialIncredible views underground, as teams are carrying out the complex work needed to prepare the CMS detector at @cern for the High-Luminosity era.
📷 Andres Delannoy
@cmsexperiment.bsky.socialWe only have moments to decide which collisions are worth keeping. With more ideas than researchers and more data than we can store, the big question is: how do we make sure we don’t throw away the discovery we’re not yet looking for?
👉 Full blog here: cylindricalonion.web.cern.ch/blogs/protec...
@cern.bsky.socialReposted by @cmsexperiment.bsky.socialThe disconnection of the LHC has begun 🧲
Work has begun to disconnect the focusing magnets on either side of the @atlasexperiment.bsky.social and @cmsexperiment.bsky.social, a key step on the road to the #HiLumiLHC.
Read more about it: home.cern/the-disconne...
@cern.bsky.socialReposted by @cmsexperiment.bsky.socialPreparing the road to #HiLumiLHC 💫
The @cmsexperiment.bsky.social is installing the new electronic system for the Drift Tube (DT) chambers, after multiple years of designing and building them.
Find out more: home.cern/science/long...
@cmsexperiment.bsky.socialCould the invisible leave footprints in our detectors? 👣
CMS performs the first collider search for "inelastic dark matter" in the case where dark-matter particles travel a measurable distance before decaying into a pair of low-momentum electrons.
Read more: cms.cern/news/chasing...
@cmsexperiment.bsky.socialTae-Jeong Kim has joined Florencia Canelli as Deputy Spokesperson, working with Anadi Canepa as Spokesperon for the CMS Collaboration for 2026-2028.
The collaboration thanks outgoing Deputy Spokesperson, Hafeez Hoorani, for representing CMS from 2024-2026.
Learn more: cms.cern/index.php/ne...
@cmsexperiment.bsky.socialWhen rare decays enter the precision era...
The CMS collaboration CERN keeps seeing the same intriguing pattern in decays of bottom quarks to strange quarks and two muons: systematically lower rates than predicted by the Standard Model!
👉Read the briefing: cms.cern/news/when-ra...
@cmsexperiment.bsky.socialModel originally designed by James Wetzel and made available by Alex Iribarren
@cmsexperiment.bsky.social🧩 Big science, small scale!
We built a miniature version of the CMS detector at CERN, from multiple 3D-printed parts.
👉 Watch the timelapse of the assembly process, from individual components: youtu.be/HVJu10uq1z0
📝 Read the story behind the design: cylindricalonion.web.cern.ch/blogs/how-i-...
@cmsexperiment.bsky.social🛠️ Every upgrade begins with a goodbye.
As CMS prepares for the High-Luminosity LHC era, long-serving detector components are being retired.
Read Sioni Summers' blog on removing part of the CMS trigger system during this exciting transition: cylindricalonion.web.cern.ch/blogs/out-old
@cmsexperiment.bsky.social🪡A needle in the pileup: CMS revives diffractive physics with tagged protons using its iconic Roman Pot detector system.
👉Read more: cms.cern/news/needle-...
@cmsexperiment.bsky.socialStep inside CMS from wherever you are, this September 25th, for European Researchers’ Night. Book a LIVE virtual visit of the detector and bring your questions straight to us.
🕑 Virtual visit slots available from 14:00 to midnight CEST
👉 Book yours now: cms.cern/interact-wit...
@cmsexperiment.bsky.socialLooks like the caption did not load properly on the page for the main image so thank you for pointing this out! We have reloaded the image and it should display properly. For anybody else looking for information on the title artwork, it was done by Sandbox Studio, Chicago with Corinne Mucha!
@cmsexperiment.bsky.social🤔How do you spot a decay that is expected just 1–100 times in 10 million decays? CMS is using an enormous amount of data collected between 2016 and 2026 to search for one such process: a W boson decaying into three charged hadrons.
👉Read the full briefing here: cms.cern/news/w-boson...
@cmsexperiment.bsky.socialHow to catch subatomic particles wakeboarding in the universe’s most perfect liquid! 🌊
The hottest, densest, and most perfect fluid in the universe has a behaviour surprisingly similar to water rippling around a speedboat. 🚤
Read the full blog here: cylindricalonion.web.cern.ch/blogs/how-ca...
@cmsexperiment.bsky.socialFour gets you more: understanding the strong force with four-way energy correlations.
CMS now has deeper insight into QCD dynamics after measuring, for the first time, energy correlations among four particles within a jet!
Read more: cms.cern/news/four-ge...
