Operation of the CMS Tracker at the Large Hadron Collider
Gehalten von DI Dr. Thomas Bergauer, DI Dr. Marko Dragicevic, DI Dr. Josef Hrubec, DI Dr. Markus Friedl, DI Wolfgang Adam, DI Stephan Hänsel, Doz. DI Dr. Manfred Krammer, DI Manfred Pernicka, DI Dr. Edmund Widl, DI Dr. Michael Hoch, Univ.Doz. DI Dr. Rudolf Frühwirth am 09.09.2010 bei ÖPG Fachtagung für Kern- und Teilchenphysik
The inner tracking detector of the Compact Myon Solenoid (CMS) Experiment at CERN is the largest semiconductor tracking device built so far. It consists of more than 25,000 individual silicon sensors with a total active area of almost 200 square meters. Its design, construction and commissioning was a huge effort of more than 50 institutes around the world and lasted almost seven years. The institute of High Energy Physics (HEPHY) of the Austrian Academy of Sciences contributed significantly to this project since its beginning by working on both the silicon strip and the pixel detectors.
With the start of normal operation of the Large Hadron Collider (LHC), the CMS Tracker became operational as a scientific device and as part of the CMS experiment during data taking. Operation experience is gained continuously as the LHC delivers proton-proton collisions. In this presentation all critical systems of the tracker will be summarized and performance data will be presented. These numbers will show that both, the tracker and the whole experiment are working extremely well. First physics plots are already emerging, like measurements of the masses of different well-known particles. These measurements are helpful in calibrating the detector to be well prepared for the discovery of new physics as the LHC continues to deliver collision data.
Kategorie: Konferenzvortag (contributed)