In a first measurement of its kind at the LHC, the CMS experiment tests whether top quarks adhere to Einstein’s special theory of relativity, and improves the bounds on noncompliance by up to a factor of one hundred with respect to previous…

Above: Part of the BTST team during the unboxing of the tube. (Image: Noor Abduljalil J Abdulla) In a massive step toward CMS’ High-Luminosity era detector, a key component of the build has arrived at the CERN laboratories. CMS has received a…

In November 2014, CMS made history by releasing its first batch of open data, comprising approximately 27 terabytes of proton-proton collision data collected in 2010 at a 7 TeV center-of-mass energy. This groundbreaking release marked the beginning…

Above: Prof. Sir Adrian Smith FRS, the President of the Royal Society, with Tejinder. Photograph by the Royal Society Professor Sir Tejinder Singh Virdee FRS awarded the 2024 Royal Medal of the Royal Society Tejinder ‘Jim’ Virdee, from Imperial…

This result is not a sprint, it is a marathon. How the teams behind the measurement of the W-boson mass at the CMS experiment found working on this result, almost a decade in the making. Precision measurements like that of the mass of the W boson…

CMS develops and deploys a new machine-learning technique based on neural networks that is able to spot existing and developing anomalies in the functioning of the detector. In the quest to uncover the fundamental particles and forces of nature, one…

On Friday, October 4th, 2024, the CMS Collaboration organised an in-person event at Point 5 for the residents of the Pays de Gex, France, where the CMS detector is located. For the first time after COVID-19, the local community was invited to visit…

The CMS Experiment welcomed more than 300 collaborators during the CMS Upgrade Week from September 16 to 20, 2024. The week showcased the immense amount of work underway to transform the CMS detector ready for the LHC High Luminosity era, also known…

  Going back to the origins, in a latest result, the CMS experiment rediscovers the Higgs boson and measures its rate of production in the "golden channel", now at the unprecedented centre-of-mass energy of 13.6 TeV. The discovery of the Higgs…

  In a recent result, the CMS experiment measures the production of charmed D0 mesons in collisions of a photon with a heavy lead nucleus for the first time. Atomic nuclei are made up of protons and neutrons, which in turn are made up of more…

The CMS Collaboration has announced 14 new results for summer topical conferences – Higgs Hunting 2024, Hard Probes 2024, and TOP 2024. In HIG-22-013, we present a search for a heavy scalar or pseudoscalar boson decaying to a top quark-antiquark…

In an extraordinary feat of precision physics, CMS measures the mass of the W boson, and finds it to be in good agreement with the prediction by the Standard Model of particle physics. In the most precise measurement of its kind ever obtained at the…