CMS
CMS releases new data
Rediscover the Standard Model of particle physics and much more with open data from the Large Hadron Collider Today, the CMS Collaboration at CERN has released more than 300 terabytes (TB) of high-quality open data. These include over 100 TB, or 2.5…
Read moreCMS 2015 - taking data under difficult conditions
The last edition of this letter ended with the optimistic remark that CMS after the end of LS1 would be perfectly prepared for the exciting times ahead of us. And indeed the final steps of LS1 went smoothly with CMS ready for the first beams. In…
Read moreCMS results in Hard Probes 2015
CMS has delivered a comprehensive set of differential RAA measurements, quantifying the jet quenching effect for hard probes of various flavors. Profound suppression of strongly interacting probes in 2.76 TeV PbPb collisions is established with high…
Read moreThe new CMS Timing and Control Distribution System
It is of paramount importance that all parts of an LHC experiment are synchronized to each other and to the passage of particles in the centre of the experiment. The original CMS Timing, Trigger, and Control (TTC) system made this possible…
Read moreGreg Rakness: CMS co-Run Coordinator
The CMS Run Coordination team is made up of three people: Christoph Schwick and myself as co-Run Coordinators and Silvia Goy Lopez as coordinator of the Detector Performance Groups. Together we manage the commissioning and operation of the CMS…
Read moreCMS: LS1 – A Short Summary and an Outlook to the Endgame
After almost two years of shutdown, all planned upgrades of CMS have been performed. The endcap muon system now has a complete forth layer with additional Cathode Strip Chambers (CSC) and Restive Plate Chambers (RPC), enclosed by two new 120t…
Read moreCMS tests new Resistive Plate Chambers
With the increase of the LHC luminosity foreseen in the coming years many detectors currently used in the different LHC experiments will be dramatically impacted and some will have to be replaced. The new ones should be capable not only to support…
Read moreThe CMS PIX Phase I upgrade CO2 cooling: a full scale prototype ready for tests
Low temperature cooling systems using evaporative Carbon Dioxide (CO2) have been used for particle detectors since 2000 by the Silicon Tracker of the AMS02 experiment at the ISS (International Space Station) and for the VELO vertex detector of the…
Read moreCMS – Highlights and Perspectives from UXC55
A very busy year of shutdown activities comes to an end, bringing us to the half-way-point of LS1. The most visible change of CMS is an additional fourth shielding disk on the +z end (pointing towards the Jura) of the detector, which is currently…
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