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02 Jun | Benoit Cure | Detector
The CMS magnet, one of the largest superconducting magnets in the world, with the largest stored energy, has been warmed up in April-May 2020 in order to perform an intervention on the vacuum pumping system. The magnet is a 220-ton cylinder cooled...
18 May | David Lange | Collaboration
The COVID-19 pandemic is having widespread impacts close to home and around the world. COVID-19 will certainly change the way the CMS collaboration will function as an experiment. Vast portions our research depend on global interactions to be...
16 May | Wolfram Zeuner | Collaboration
Immediately after CMS was brought into a safe state on 18 March, planning for a controlled restart began, with the objective of protecting all people working at the CMS Experiment site (Point 5, P5) as effectively as reasonably possible. Physical...
13 May | Austin Ball | Detector
During the early months of 2020, as the COVID-19 threat increased, CMS activity was adapted to gradually transfer responsibility to locally resident collaborators. LS2 work was accelerated in the experimental hall, so as to reach a critical LS2...
17 Feb | Paul Lujan | Detector
When the LHC is sending billions of protons at each other millions of times per second, it’s important to know just how many of them actually are colliding, both so that the LHC can optimize its operations to produce the most collisions possible,...
20 Jan | Keti Kaadze | Detector
Soon after 2027, the LHC will enter the high luminosity era, known as HL-LHC, during which it is expected to deliver about 20 times more data than delivered up the end of Run 2. In order to achieve such high luminosity, the LHC is going to use much...
27 Dec | Federica Baldassari | Collaboration
2019 is approaching its end with it the first year of the LHC Long Shutdown 2 (LS2), a break that focuses on the upgrade and maintenance of the LHC. It’s been twelve intense months for the growing CMS collaboration that counts 53 member countries. ...
12 Dec | Francesca Cavallari | Detector
The CMS electromagnetic calorimeter (ECAL) measures the energy of electrons and photons produced in the LHC collisions with extreme precision. It includes, as main active element, 75848 scintillating crystals made of lead tungstate, a material that...
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02 Dec | Klaas Ole Padeken | Detector
The CMS detector is going through multiple maintenance works during the LHC Long Shutdown 2 (LS2), the first year of which is approaching its end. The beginning of 2019 saw the CMS Tracker Pixel detector extraction that is now stored in a clean room...
30 Oct | Jay Dittmann | Detector
With the connection of the final cable on October 4, CMS completed the installation of new on-detector electronics for the Hadron Calorimeter (HCAL) barrel detector. Following a series of upgrades to the electronics of  various HCAL subdetectors...