CMS Experiment

The LHC is back online

The LHC is back online! This morning we saw first beams splashes in the CMS experiment as the beam was threaded through the LHC full circle!

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CMS intensifies search for new physics, closes in on H(125) at 13 TeV

Figure 1: Invariant mass of photon pairs reconstructed in the central region of CMS collected in 2.7fb<sup>-1</sup> of 3.8 T data (left) and 0.6fb<sup>-1</sup> of 0 T data (right). Results of simultaneous parametric fits to the data, with uncertainty bands, are also shown.

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New CMS spokesperson: "An honour to be chosen to lead a spectacular collection of people"

Joel Butler, CMS spokesperson elect. (Image: Reidar Hahn/Fermilab)

"Move over Mr Einstein!" A scientific experiment ignites creativity and dialogue

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CMS presents new 13TeV results at end-of-year jamboree

Image 1: This spectrum, showing the masses of muon pairs recorded by the CMS detector in data collected in 2015, demonstrates the “re-discovery” of several known particles at the 13TeV energy regime.

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European Researchers' Night 2025

European Researchers' Night takes place on the 26th of September this year, and it is projected that around 1.5 million people will be involved in the various activities over the day and night.

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CMS presents first results with 13 TeV at 2015 EPS-HEP Conference

A 13TeV collision recorded by the CMS detector showing two high-energy particle jets with a collective mass of 5 TeV. Image: Thomas McCauley and Tai Sakuma

Note: This document is also available in the following languages (PDFs).

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Physics Awards for the "Founding Fathers" of CMS

Tejinder Virdee (left) and Michel Della Negra in the CMS Control Room

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CMS is preparing for high-luminosity run at 13 TeV

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CMS embarks on data collection at 13 TeV

One of the first collisions with "stable beam" at 13 TeV recorded by CMS

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