Göttingen 2012 – scientific programme
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T: Fachverband Teilchenphysik
T 26: QCD 2
T 26.8: Talk
Tuesday, February 28, 2012, 18:40–18:55, ZHG 009
(contribution withdrawn)Energy-calibration of the forward calorimeter CASTOR with particle decays in the CMS experiment — •Hauke Wöhrmann — Karlsruher Institut für Technologie (KIT), Kaiserstraße 12, 76131 Karlsruhe
The CMS(Compact Muon Solenoid) experiment is a detector system to analyse hadronic collisions at the LHC(Large Hadron Collider). For studying high energy physics CMS covers a large rapidity range at LHC. One subdetector of CMS to measure in this high rapidity region around 6 is the CASTOR(Centauro And STrange Object Research) calorimeter. CASTOR has an electromagnetic(20 X0) and hadronic(10 λI) section where each is build of alternative layers of tungsten- and quartz-plates. The charged particles produce cherenkov-photons in this quartz-plates. Because of a residual magnetic field at the detector location an energy calibration is difficult. For this purpose we investigate the approach to use the electromagnetic two-body-decay of well known particles like Z or pi0. Therefore we run over 50 pb−1 of data and determine clean electromagnetic signals in the detector.