The last few months have seen several important objectives of the CMS LS1 programme completed, giving increasing confidence in the final outcome. In particular, the Tracker is running cold, the Phase 1 beam-pipe has passed acceptance tests at CERN…

The Tracker is a subdetector that is located closest to the collision point of the LHC’s particle beams inside the CMS detector. It must face an onslaught of billions of particles flying through it each second of operation. To mitigate the effects…

After two years of planning, one year of implementation, and two million CHF worth of investments, the Tracker project has achieved its most important goal to enable the “Tracker Going Cold”. The Tracker was successfully (and safely!) operated “cold…

The top quark remains, nearly 20 years after its discovery by the experiments at Fermilab’s Tevatron, the heaviest particle known. Its production and decays continue to be the subjects of extensive studies, both at the Tevatron and at the LHC. While…

From the desk of the CB Chairperson The CB Chair team is pleased to issue the first newsletter of the year. With Ian Shipsey, our former CB Chair now well installed in his new job, the team now consists of: Claudia-Elisabeth Wulz (acting CB Chair),…

Dear colleagues, CMS has been invited for a total of 21 talks (16 plenary and 5 parallel) at the workshop "Physics at LHC and beyond", in the framework of the 10th Rencontres du Vietnam, taking place from August 10-17 in Quy-Nhon, Vietnam. There's a…

More than 500 junior and senior high-schoolers from seven different locations in Greece had the opportunity for a virtual visit to the CMS experiment today in collaboration with the Open Discovery Space project. With the use of lightweight…

Building robots, using 3D printers and testing chemical reactions is an excellent way to spend your Saturday. Nearly 400 11- to 14-year-old girls from Geneva and the surrounding regions participated in these and other entertaining and educational…

Dear friends, We would like to share with you the selection of some stories from the beginning of the year year: http://cmsexperiment.web.cern.ch/newsletter/201401 - Tiziano Camporesi takes reins of CMS - ECAL Preshower removed from detector for…

CMS has many different safety systems installed in the underground experimental area. These are designed to protect the detector and all the associated electronics as well as the cavern itself. In case of fire, the last line of defence is the High…

From the CMS experimental site at Cessy, France, located at Point 5 on the LHC ring ————— After a well-deserved Christmas break, work has resumed at Point 5 at an unabated pace. With an extremely busy 2013 behind us, all teams are now focusing their…

The first part of the CMS endcap calorimetry, as seen by particles coming from interactions in the centre of the detector, is the "ECAL Preshower" or "ES" for short. "ES−" and "ES+" are used to distinguish the two ends of this subsystem. The ES is…